emission test locations

Illinois Vehicle Emissions Testing: When, Where and How to Get Your Vehicle Tested

Published november 2, 2021 • updated on november 4, 2021 at 9:46 am.

NOTE: An earlier version of this article indicated that license plate sticker deadline dates had been extended through the end of the year. That extension only applies to driver's licenses and state identification cards.

Illinois residents who are required to get their vehicles’ emissions tested are being urged to do so sooner rather than later to avoid long lines.

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Vehicles in the state of Illinois that need to have their stickers renewed are required to go through emissions testing in specific communities to comply with federal guidelines.

Here is what you need to know:

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Who Needs to Have Their Vehicle’s Emissions Tested?

Under provisions of the federal Clean Air Act, residents who live in “large urbanized areas that do not meet the National Ambient Air Quality Standards” must have their vehicle’s emissions tested every other year.

In the state of Illinois, two areas fall into that category: the city of Chicago and its surrounding suburbs, and the Illinois counties that border the city of St. Louis.

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For the Chicago area, residents in Cook, DuPage and Lake counties are required to get the tests. Certain residents in Kane, Kendall, McHenry and Will counties will also need to have their vehicles tested.

Residents can check to see if they’re required to obtain the tests by using the following ZIP code finder tool, produced by Illinois Legal Aid .

What Vehicles Are Required to be Tested?

According to state officials, most gas-powered vehicles that are four years old or older, and were manufactured after 1996, are required to be tested every other year.

Motorcycles, antique vehicles, cars manufactured before 1996, farm vehicles, and vehicles with a gross vehicle rate of greater than 14,000 pounds are exempt from the requirements. Diesel-powered and electric-powered vehicles are also exempt.

When Do Residents Need to Get Their Vehicles Tested?

Residents are required to get emissions tests for vehicles before they can renew their vehicle registration.

The state uses a car’s model year to determine which years residents must get tests in, and uses the month that registration expires to determine when a resident must get their vehicle tested.

For example, if a resident were to purchase a 2016 model year vehicle, and registered that vehicle in June, then that resident would be required to have their vehicle tested in every even-numbered year thereafter, and the test would be due by June.

How Much Does a Vehicle Emissions Test Cost?

In the state of Illinois, vehicle emissions tests are free.

Where Can I Get an Emissions Test?

The state of Illinois has a tool that allows residents to find not only their nearest testing station, but also a repair shop in the event that a vehicle fails an emissions test. That can be found here.

Are There Any COVID-19-Related Precautions Being Taken at Testing Sites?

Residents who get their vehicles tested will be asked to come to the testing site by themselves, and are asked to wear masks. They will also be asked to practice social distancing within the facility while they wait for their vehicle to be tested.

Residents will also be asked to give test-takers their mileage verbally to help minimize the amount of contact the test-taker has to make with the vehicle.

Under current policy, test-takers will only touch a vehicle to attach and to remove testing equipment, according to the Secretary of State’s Office.

What Happens if My Vehicle Fails a Test?

A vehicle will need to be repaired and retested if it fails its emissions test. Motorists will be given several documents if their vehicle fails a test, which can be used by licensed mechanics to help diagnose and repair any issues.

If My Registration is Already Expired, When Should I Get My Test?

As soon as possible. The state of Illinois expects that wait times at testing facilities will continue to remain high due to earlier extensions of license plate renewals, as well as COVID protocols at offices.

Tests are good for up to two years after they are performed, according to state officials.

For any additional questions, residents are urged to visit the Illinois Air Team’s informational website.

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Emissions Testing 101: What You Need to Know

By Kelsey Mays

For millions of Americans, emissions tests are a familiar piece of vehicle ownership. For others, moving to a new city or buying a new car can introduce this type of inspection for the first time. Thirty-one states and the District of Columbia require emissions tests in at least one county, according to the EPA. But if you hail from the other 19 — a list that includes populous states like Florida and Michigan — or a county that doesn’t mandate them, this inspection might surprise you.

Related: Check Engine LIght: What You Need to Know

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Not to worry: Emissions tests, called smog tests or emission inspections in some areas, need not present a regulatory rigmarole. We asked experts to weigh in on the particulars of the test as well as what to do if your car fails. We’ll answer what you need to know about emissions tests, including:

What Does an Emissions Test Involve?

What if i have an older car, why might my car fail the test, what do i do if i fail the test, if i fail the test at one facility, should i get a second opinion, are there any signs before the test that i’ll fail, couldn’t i just get my check engine light turned off before going to the test, if my check engine light is off, will i pass the test.

Every engine gives off emissions, and in most areas, vehicles are only allowed to produce a certain amount. Years ago, the test used to require facilities to put your car on a dynamometer — essentially a vehicle treadmill — and hook up testing equipment to your tailpipes. Now it’s far simpler: For cars from 1996 and newer, technicians typically hook up a diagnostic device to your onboard diagnostic II port , a standardized electronic input that’s usually near the base of your steering column. They’ll also do a visual inspection.

“Every vehicle that’s manufactured has a federal [emissions] standard that it has to meet, and that onboard computer is designed to warn the driver of any system or any failure that would alter that,” explained Pete Meier, the technical editor at Motor Age, an industry publication for mechanics. Technicians check what’s called “monitors” — essentially test cycles of various systems.

“It’s about maybe a dozen [monitors],” Meier said. “The whole idea is the computer has to keep an eye on all the management systems and make sure they’re functioning properly.”

You’ll pass or fail an emissions test based on how each of those monitors perform, explained John Tisdale, assistant vice president of test development at the National Institute for Automotive Service Excellence.

“It’s looking at some very specific data parameters,” Tisdale said. “[The parameter] says that the monitor has been run and been run successfully. If the majority of your monitors have run and run successfully, that’s the pass/fail.”

In some areas, the OBD-II hookup isn’t necessary. Virginia’s RapidPass program has roadside equipment to sample the air coming out of your tailpipe as you drive by. Pass the test and receive a notification, and you can skip the trip to an emissions station.

Check with your state and county, as older cars in many states are exempt from tests. The OBD-II requirement in 1996 was “pretty much a line in the sand,” Tisdale said. “Anything prior to 1996 is going to need to have the treadmill test.” Certain facilities still perform such tests, he added, but that’s on a case-by-case basis.

Worst case, it could be a major engine or mechanical problem that will cost thousands of dollars to fix. The most serious problems are “probably anything that would cause the engine to suffer severe misfire — that could be a cylinder that loses compression or has a mechanical issue, or the spark plug stops working,” Meier said. “You’ll notice that, because in that case, the check engine won’t just be on. It will flash.”

Your check engine light could also be on because of a fault in the following vehicle systems , according to the Ohio EPA:

• Catalytic converter
• Fuel system
• Ignition timing 
• Air injection system
• Vacuum lines
• Engine oil (contaminated)
• Crankcase ventilation (positive crankcase ventilation 
• Exhaust gas recirculation

Some states have one-time waivers if you spend a certain threshold of money trying to get the problem fixed, Tisdale said, but that usually buys you only one cycle of respite. The next time your car needs a test, don’t expect to qualify for a waiver.

Of course, the problem could be straightforward. When CarMD analyzed the top 10 repairs that stem from a check engine warning — a major indicator your car will fail the test — the priciest problem averaged nearly $1,200 to fix. But the cheapest averaged just $17.

“It could be something as simple as a poorly secured gas cap,” Tisdale said. “You left your gas cap loose and drove around, and that monitor said that the evaporator system isn’t working properly.” To avoid this problem, make sure you attach the gas cap securely every time you fuel up your car.

Assuming it’s something more serious than a loose gas cap, a mechanic can run a diagnostic to determine which monitors failed the test. The diagnostic might reveal that “these three monitors failed the test, and so they had this repaired, and now we’re seeing that we have valid criteria, so there’s monitors and a pass,” Tisdale said.

If you prefer to tackle the problem yourself, a diagnostic tool can help do that, but such tools — even the ones professionals have — usually only report the problem, not the solution.

“Another misnomer that a lot of consumers think is the professionals have this magic tool that they plug in, and the computer tells them what to do to fix it,” Meier said. It’s up to the mechanic to know what to fix, he added, but that depends on their tools and expertise.

There’s little point to that. Information from the OBD-II “is considered to be absolutely reliable — it’s not generally something that anyone could really tamper with,” Tisdale said. “Going from station to station isn’t going to come out with a different result if your vehicle has failed.” While you may be able to have a shop reset your check engine light, you can’t reset the information from the OBD-II.

Getting a second opinion from a mechanic , on the other hand, is another matter.

“If a check engine light is on, there’s something wrong,” said Tony Molla, vice president at the Automotive Service Association, in an email. “Precisely what that is depends on the skill and knowledge of the technician. It never hurts to get a second opinion, but I’d be careful of wildly different diagnosis results.”

Yes. In short, it’s all about that check engine light — an indicator that the OBD-II has detected a malfunction in your car’s emissions controls. (Read our full check engine light primer here .)

Pete Rudloff, who owns Pete’s Garage in Newark, Del., said that light can only come on for emissions-related reasons. Other malfunctions may cause error codes to the powertrain control module, but they won’t illuminate the light.

“The manufacturers may only illuminate the check engine light if the car is out of emissions compliance,” Rudloff wrote in an email. “For example, a faulty fuel level sending unit may cause codes to be active in the PCM, but they will not cause a check engine light to illuminate because it is not an emissions issue.”

If that light is on, most facilities count it as an ipso facto failure: “Virtually all states with emission testing list an illuminated check engine light as a failure in and of itself,” Molla wrote.

If it’s just a shortcut, Meier advises against it. “Some people have tried in the past to turn the check engine light off or have it reset and then go get their test before it comes on again,” he said. But OBD-II systems generally store their codes, and the only way they’ll go away is when the computer runs its own tests, he added. That’s the case even if you buy a do-it-yourself tool to turn off the light.

“You can run all the checks yourself and see where you’re at, and you can turn the light off yourself, but again, as soon as the computer reruns that test, it’s going to fail it and it’s going to turn [the check engine light] back on,” Meier warned.

Even if you resolve whatever caused a monitor to fail, some monitors need to run for a certain period of time before they can finish a cycle and give the all-clear code.

“Probably the most troublesome is that evaporative emissions [monitor] on some of those older OBD-II cars,” he said. “Sometimes, [for] people who just drove back and forth to work a few times … it would take weeks to finish those monitors.”

And your smog station isn’t going to run the car long enough to resolve that monitor: “They’re going to look at the [thing] for the moment,” he said.

Generally speaking, yes. Cars can certainly fail a test without the light on, but experts agree that if the light is off and you haven’t manipulated the system, you shouldn’t lose sleep over the possibility of failing the test.

The “EPA requires the light be [in] operation, which means a key on the light should illuminate [bulb check] and then turn off once the engine is running,” Rudloff wrote. “The rule of thumb is [an] operational but normally off check engine light and all but one monitor completed should result in a pass under most conditions.”

You can always visit a mechanic beforehand as most are willing to do a pre-inspection test, but a car in good working order should be fine.

“If the vehicle has been properly maintained according to the manufacturer’s owner’s manual and service schedule, then chances are, you’ll pass the emissions testing with no problem,” Molla wrote. “However, the older the vehicle is and the more wear engine parts and components experience, the more likely that an emissions problem will crop up. That’s why they do periodic testing.”

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Sell my car, car research, sign in, what is an emissions test, and do i need one, the what, when, and where of ensuring your vehicle passes a 'smog" test..

Article QuickTakes:

• What is an emissions test?
• Do I need to get my car smogged?
• Where can I get an emissions test?
• What happens if I fail a smog test

While every new vehicle design undergoes emissions testing by the Environmental Protection Agency before going on sale, there's a more immediate type of emissions testing facing millions of American motorists: the regular, state-level process required across the majority of the country.

What is an emissions test (also known as a "smog" test), and how do you know if you need one? Here's a primer on why, when, and where you can get your vehicle tested.

What Is an Emissions Test?

In the simplest terms, a state emissions test detects the amount of atmospheric pollution produced by an automobile while the engine is running, using sensors attached to its exhaust system. These pollutants can include carbon monoxide, oxygen, hydrocarbons, and nitrogen oxide.

Emissions tests are administered by state authorities, and each state uses its specific standard to determine acceptable emissions levels. The test type can also vary, with some states simulating actual driving on a dynamometer, testing at idle, or using existing onboard diagnostic systems to determine the condition of a vehicle's emissions equipment.

Do I Need an Emissions Test?

There are 32 states that require some type of emissions testing. However, not all these jurisdictions operate state-wide testing, with some exempting certain counties or cities. There are also frequent exemptions for older vehicles, those registered as collector cars or antiques, or "new" cars that fall within a sliding scale of model years.

The frequency of testing also varies depending on where you happen to live. Some states require testing every year, while others every two years. Some may also need a smog test when a vehicle changes hands or when it is brought in from another state.

Visiting your state's motor vehicle department website is a great place to check whether you need to schedule a smog test.

Where Can I Get an Emissions Test?

Things can get a little complicated when seeking a state emissions test. In Arizona, for example, you must stick to the county where your vehicle is registered, as testing requirements differ from one area to the next.

Generally, emissions tests are performed at a mix of licensed private garages or state-owned testing facilities. Some states make it easy to look up online where you need to go for a test, while others allow you to get a test performed in a state other than where you reside and then send the results to your home state’s motor vehicle department.

What If I Fail an Emissions Test?

In the event of a failed state emissions test, most jurisdictions will give you a window of time to have your vehicle's exhaust or smog equipment repaired before allowing a re-test. Waiver programs can also be applied to a vehicle that fails multiple re-tests after being repaired. Repeated failures without a waiver can make it impossible to register your vehicle.

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Since its founding, EPA has been at the forefront of developing clean automotive technology and designing programs to reduce and prevent air pollution. Vehicle, engine, and fuel testing is an important way for EPA to verify emission standards are met and ensure the benefits from our programs become a reality. The National Vehicle and Fuel Emissions Laboratory (NVFEL) is a state-of-the-art test facility that provides a wide array of analytical testing and engineering services for EPA’s motor vehicle, heavy-duty engine, and nonroad engine programs to support the Agency’s regulatory goals. NVFEL is ISO 17025:2017 accredited and ISO 14001:2015 certified.

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Vehicle Emissions Inspection Requirements and Exemptions by State

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DID YOU KNOW? In addition to free resources designed for true enthusiasts—like emissions and exhaust noise toolkits—the SAN also keeps tabs on proposed laws for cars and trucks in all 50-states? Protecting your rights is cost-free, easy, and more important than ever. Subscribe for breaking updates in your state:

Click on a state to view details.

Clearing the smog law haze.

Everyone agrees that taking strides toward keeping our planet healthy is a noble cause, but how should the burden be shared?  Clean air is a national concern addressed by the EPA, but the laws governing how motor vehicle smog checks are performed, which vehicles are tested and how frequently is handled at the state and local level.  Maybe a daily driver needs an inspection every two years or so, but what about an infrequently driven collector car? Are the laws different for 3/4- or 1-ton trucks? And what if that truck is a diesel?  The SEMA Action Network (SAN) helps you keep track of smog check requirements in each state and the laws that exempt certain specialty vehicles.

The following information is posted here for enthusiasts to learn more about vehicle emissions inspection laws in their states.  Please understand that state laws are subject to change, and it is important to consult the current statutes and regulations in your state to ensure accurate information.  You should not rely solely on the following information, and SEMA disclaims any responsibility for damages that arise out of reliance on the following information.  If you have further questions, please contact the SAN at  [email protected] .

Emissions inspections are required for vehicles registered in the metro Phoenix area (Area A) and the metro Tucson area (Area B) and must be inspected for emissions no more than 90 days prior to registration. Registration renewal applications issued by the MVD will include the statement "Emission Test Required" when the vehicle is required to be tested.

Diesel Vehicles : Diesel vehicles are required to be tested annually.

Exemptions: 1. Vehicles registered outside of Phoenix and Tucson Metro Area zip codes. 2. Gasoline-powered and alternative fuel vehicles 5 model years old and newer (this does NOT include reconstructed vehicles). 2. Pre-1967 model year vehicles 3. Vehicles registered as "collectible" with collectible vehicle insurance

For more information visit: http://www.azdot.gov/mvd/RegRenewal/RenewalInfo.asp , http://www.azdeq.gov/environ/air/vei/ , and http://www.myazcar.com/

Currently, smog inspections are required for most vehicles every two years for registration renewal.

Diesel Vehicles:

All diesel vehicles 1998 model or newer or an GVWR of less than 14,000 lbs.

Exemptions:

For more information visit : http://www.dmv.ca.gov/vr/smogfaq.htm#BM2543 ; http://www.bar.ca.gov/01_ConsumerActivities/01_GettingSmogged/index.html ,

For information on Kit and Specially Constructed Vehicles visit:   https://www.dmv.ca.gov/portal/dmv/detail/vr/spcnsreg

The full counties of Boulder, Broomfield, Denver, Douglas and Jefferson and portions of Adams, Arapahoe, Larimer, Weld, and El Paso counties require a passing emission test to register a vehicle. Diesel Vehicles: All diesel vehicles model years 2007 – 2013 need an emission test biennially and all diesels model years 1986 – 2006 need emissions tests annually.

Exemptions: 1. Vehicles that are seven (7) model years old and newer 2. Vehicles in their "off" year cycle - vehicles require an inspection every other year. 3. All-electric vehicles (hybrid-electric vehicles are inspected after 7 years). 4. Collector plated vehicles (model year 1975 and older). 5. Horseless carriages, street rods, and kit cars

For more information visit :  http://aircarecolorado.com/index.php/consumer-information/2015-emissions-inspction-program-faq/ , https://www.colorado.gov/pacific/dmv/gas-vehicles , and https://www.colorado.gov/pacific/dmv/diesel-vehicles

CONNECTICUT

Emissions inspections are required every two years. The state notifies registered vehicle owners of an upcoming test date 45 days in advance of when the test is due to be conducted.

Diesel Vehicles: Diesel vehicles are required to be tested in the same manner as gasoline powered vehicles

Exemptions: 1. New vehicles for the newest four (4) model years 2. Motor vehicles twenty-five (25) model years old and older 3. Vehicles with a GVWR of more than 10,000 lbs 4. Vehicles registered as composite vehicles 5.  Full electric-powered (non-hybrid) 6. Vehicles registered but not designed primarily for highway use 7. Vehicles with Dealer, Repairer, or Transporter Plates

For more information visit: http://ctemissions.com/ 

Emissions inspections are required for vehicles when vehicles are registered or when registration is renewed.

Diesel Vehicles: Required for all diesel vehicles manufactured after 1997

Exemptions: 1. New vehicles for the newest five (5) model years 2. Pre-1968 model year vehicles. 3. Vehicles with a GVWR of more than 8,500 lbs

For more information visit: http://www.dmv.de.gov/services/vehicle_services/reg/ve_reg_emissions.shtml

DISTRICT OF COLUMBIA

Emissions inspections are required for vehicles prior to registration and every two years thereafter.

Diesel Vehicles: Diesel vehicles are not tested for emissions.

Exemptions: 1. New vehicles are exempt from the initial inspection for four years, but are required to display the inspection sticker that is provided by the DMV upon initial titling/registration 2. Pre-1966 model year vehicles 3. Designated as a zero emissions vehicle.

For more information visit: https://dmv.dc.gov/service/vehicle-inspections

Emissions if your vehicle is a 1993 – 2014 model year gasoline-powered car or light-duty truck (8,500 pounds gross vehicle weight rating or less) registered in Cherokee, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Henry, Paulding or Rockdale County, it must be emissions tested. 

Exemptions: 1. New vehicles for the newest three (3) model years 2. Motor vehicles twenty-five (25) model years old and older 3. Vehicles with a GVWR of more than 8,500 lbs 4. Kit cars, hot rods, and gray market vehicles are provided with non-conforming status if they were granted non-conforming status before December 31, 1998.

For more information visit: http://www.cleanairforce.com/motorists/

Vehicles registered in Ada and Canyon Counties are required to undergo emissions testing for registration and registration renewal. 

Diesel Vehicles: Diesel vehicles are required to be tested in the same manner as gasoline powered vehicles and are provided with the same exemptions.

Exemptions: 1. New vehicles for the newest four (4) model years 2. Pre-1981 model year vehicles 3. Electric or hybrid motor vehicles 4. Classic automobiles as defined by Idaho Code 5. Vehicles with a GVWR of less than 1,500 lbs 6. Vehicles with a GVWR of greater than 14,000 lbs For more information visit: http://www.idahovip.org/

Vehicles registered in specific ZIP codes in the Northeastern Illinois and Metro-East St. Louis areas are subject to testing every two years.

Exemptions: 1. New vehicles for the newest three (3) model years 2. Pre-1968 model year vehicles 3. Vehicles of model year 1995 or before that were in compliance with the Illinois Vehicle Emissions Inspection Law on February 1, 2007 4. Electric Vehicles 5. Vehicles registered as antiques, expanded use antiques, customs and street rods 6. Vehicles for which a Junking Certificate has been issued by the Secretary of State pursuant to the Illinois Vehicle Code (625 ILCS 5/3-117). 7. Vehicles of model year 2006 or earlier with a manufacturer gross vehicle weight rating between 8,501 and 14,000 pounds. 8. Vehicles with a manufacturer gross vehicle weight rating greater than 14,000 pounds.

For more information visit: http://illinoisairteam.net/

Vehicles registered in Lake County and Porter County (Chicago metropolitan area) are required to undergo emissions testing biennially.

Exemptions: 1. New vehicles for the newest four (4) model years 2. Pre-1976 model year vehicles 3. Kit cars and dune buggies that meet established criteria for a "Specialty Exemption"; specialty exemptions must be applied for and granted every two years 4. Show cars that meet established criteria for a "Show Car Exemption"; show car exemptions must be applied for and granted every two years 5. Ceremonial vehicles 6.  Antique vehicles. 7. Vehicles with a GVWR of more than 9,000 lbs. 8. Electric Vehicles

For more information visit: http://www.in.gov/bmv/2655.htm and http://www.cleanaircarcheck.com/about_emissions_testing.php

Vehicles registered in the five-parish area around Baton Rouge consisting of Ascension, East Baton Rouge, Iberville, Livingston, and West Baton Rouge parishes are subject to emissions testing during an annual combined safety/emissions inspection.

Exemptions: 1. New vehicles for the newest two (2) model years 2. Pre-1980 model year vehicles 3. Vehicles with a GVWR of more than 10,000 lbs 4. Vehicles with antique registration and plate For more information visit:   http://www.lsp.org/lse_form4.html  and http://deq.louisiana.gov/assets/docs/Air/FAQ052914.pdf

Vehicles registered in the Cumberland County are subject to annual emissions testing that is performed at the same time as the state's safety inspection. The emissions inspection includes an equipment check, a gas cap pressure test for 1974 and newer vehicles and an Onboard Diagnostics (OBD) inspection for 1996 and newer vehicles.

Diesel Vehicles: Only diesel vehicles with a GVWR of more than 18,000 lbs are tested for emissions.

Exemptions: 1. Vehicles with antique registration and plates

For more information visit: http://www.maine.gov/dep/air/mobile/enhancedautoinsp.html

Vehicles registered in 13 out of Maryland's 18 counties and the city of Baltimore are required to undergo biennial emissions testing.

Counties: Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Harford, Howard, Montgomery, Prince George's, Queen Anne's, and Washington

OBD testing is performed on vehicles model year 1996 and newer and an idle tailpipe and gas cap test is administered on model year 1977-1995 vehicles.

Exemptions: 1. New vehicles for the first 24 months and qualified hybrids for the first 36 months after titling and registration 2. Pre-1977 model year vehicles 3. Vehicles with a GVWR of more than 26,000 lbs 4. Vehicles registered as Class N street rod vehicles 5.  Historic or Antique vehicles 6. Electric Vehicles 7. Vehicles registered to senior citizens over 70 or vehicles registered with hard metal disable tags and who drive 5,000 miles per year or less. For more information visit: http://www.mva.maryland.gov/about-mva/info/58000VEI/58000-06T.htm#appendix_c

MASSACHUSETTS

Massachusetts performs an OBD emissions test annually on model year 2003 and newer vehicles. Vehicles manufactured before model year 2003 no longer receive tailpipe emissions tests, but fail their safety inspections if they produce visible smoke.

Diesel Vehicles: Diesel vehicles are required to undergo emissions testing based on their weight and model year. Pre-1984 diesel vehicles are exempt. Pre-1997 (or 15 or more model years old) light duty diesel vehicles and pre-2007 (or 15 or more model years old) medium duty diesel vehicles are exempt. 

Exemptions: 1. New vehicles delivered to Massachusetts owners 2. Vehicles 15 years old and older  3. Electric Vehicles

For more information: http://massvehiclecheck.state.ma.us/motorist_basicinfo.html

MISSISSIPPI

Missouri requires biennial emissions testing (combined with the state's biennial safety inspection) on vehicles registered in the St. Louis ozone nonattainment area, which includes St. Louis City and Franklin, Jefferson, St. Charles and St. Louis counties.

Diesel Vehicles: Diesel vehicles must undergo OBD emissions testing in the same way as gasoline powered vehicles. Pre-1997 model year diesel vehicles are exempt.

Exemptions: 1. Pre-1996 model year vehicles 2.  New motor vehicles 3.  Motor vehicles sold for junk, salvage, or rebuilding 4. tor vehicles that display historic or street rod plates 7. Vehicles driven fewer than 12,000 miles between biennial safety inspections (must submit a mileage based exemption request) 8. Vehicles with a GVWR of over 8,500 lbs. 9.  Vehicles powered exclusively by solar power, electric, hydrogen

For more information visit: http://dor.mo.gov/motorv/help.php#emissions  and http://www.dnr.mo.gov/gatewayvip/

Nevada requires emissions testing on vehicles registered in Clark County (Las Vegas) and Washoe County (Reno) before the vehicle can be registered or its is registration renewed.

Diesel Vehicles: Diesel vehicles with a GVWR of 14,000 or less must undergo emissions testing, but are provided with the same exemptions provided to gasoline powered vehicles.

Exemptions: 1. New vehicles for their first and second registration 2. New hybrid-electric vehicles for the first 5 model years 2. Pre-1968 model year vehicles 3. Vehicles based in remote areas of Clark and Washoe counties and all other Nevada counties 4. Alternative fuel vehicles. 5. Vehicles registered as a Classic Rod, Classic Vehicle or Old Timer and driven 5,000 miles or less per year. 6. Vehicles registered as a Replica Vehicle.

For more information visit: Visit http://www.dmvnv.com/emission.htm  for more information.

NEW HAMPSHIRE

New Hampshire requires all automobiles and light-duty trucks whose model year is 20 years old and newer must pass an OBD emission system inspection.

Diesel Vehicles: Model year 1997 and newer diesel vehicles with a GVWR of 8,500 lbs or less must undergo emissions testing.

Exemptions: 1. Pre-1996 model year vehicles 2. Vehicles with a GVWR of more than 8,500 lbs 3. Vehicles 20 model years old or older

For more information visit: http://www.nh.gov/safety/divisions/dmv/registration/inspections-emissions/

New Jersey requires emissions testing every two years.

Diesel Vehicles: Light duty (8,500 lbs or less) diesel powered vehicles model year 1997 and later are required to undergo diesel emissions testing. 

Exemptions: 1. New vehicles for the newest five (5) model years 2. Vehicles model year 1995 & older with a GVWR 8,500 pounds or less. 3. Vehicles model year 2013 & older with a GVWR 14,001 pounds or more. 2. Vehicles registered as "historic vehicles" 3. Approved Collector Vehicles which are less than 25 years old 4. 100% Electric vehicles

For more information visit: http://www.state.nj.us/mvc/Inspections/VehiclesExempt.htm

New Mexico requires emissions testing at the time of registration for vehicles registering in Bernalillo County. All 1983 and newer motor vehicles up to 10,000 lbs GVW must pass an emission test every two years and at change of ownership.

Diesel Vehicles: No Required Emission Test

Exemptions: 1. New vehicles for four years following initial registration from the date of manufacturer's certificate of origin (MCO). 2. Electric Vehicles. 2.  Vehicles that are 35 years old or older. 3. Vehicles with a GVWR of more than 10,000 lbs. 4.  Vehicles that are used for legally sanctioned competition 5. Vehicles that are not operated on public streets and highways.

For more information visit: http://www.mvd.newmexico.gov/Vehicles/Pages/Emissions-Testing.aspx

New York requires annual emissions testing in conjunction with the state's annual safety inspection. Vehicles that weight 8,500 lbs or less which are model year 1996 or newer must undergo an OBD-II inspection. Vehicles manufactured prior to 1996 are subject to a low enhanced inspection. 

Diesel Vehicles : Diesel-powered vehicles that that are 1997 or newer and that have a GVRW less than 8,501 pounds are subject to annual emissions inspection.

Exemptions: 1. New vehicles for the newest two (2) model years 2. Vehicles that are 26 model year old or older 3. Electric 3. Vehicles registered with historical plates

For more information visit: https://dmv.ny.gov/inspection/inspection-requirements

NORTH CAROLINA

North Carolina requires OBD emissions inspections annually in 48 counties. The inspections are performed in conjunction with the state's safety inspections and must be performed prior to a vehicle's registration or registration renewal.

Exemptions: 1. Current model year vehicles 2. Pre-1996 model year vehicles 3. Vehicles that are 35 model years old or older 4. Vehicles with a GVWR of 8500 pounds and greater

For more information visit: http://www.ncdot.org/dmv/vehicle/registration/inspection/  and http://www.ncdot.gov/dmv/vehicle/title/vehicles/

NORTH DAKOTA

Ohio requires emissions tests for vehicles every other year in Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit counties (Cleveland Metropolitan area). Even model year vehicles must be tested during even-numbered years and odd model year vehicles must be tested during the odd-numbered years.

Diesel Vehicles: All diesel-fueled vehicles equaling 10,000 pounds gross vehicle weight rating (GVWR) or less must be tested.

Exemptions: 1. New vehicles for the newest four (4) model years 2. Vehicles that are 26 model year old or older 3. Vehicles with a GVWR of more than 10,000 lbs 4. Vehicles registered as "historical" or "collector" vehicles 5. Recreational vehicles and motor homes 6. Parade and exhibition vehicles 7. Electric vehicles (one-time verification inspection required)

For more information visit: http://www.epa.state.oh.us/dapc/mobile.aspx

Oregon's Department of Environmental Quality requires emissions testing in the Portland and Medford metropolitan areas prior to registration and as a part of the registration renewal process.  

Diesel Vehicles: Diesel vehicles in the metropolitan areas of Portland and Medford with a GVWR of 8,500 lbs or less are required to undergo emissions testing, but are provided with the same exemptions provided to gasoline powered vehicles in those areas.

Exemptions: 1. Pre-1975 model year vehicles (Portland) 2. Vehicles that are 21 model year old or older (Medford)

For more information visit: http://www.oregon.gov/deq/Vehicle-Inspection/Pages/Portland-Required-to-Test.aspx

PENNSYLVANIA

Pennsylvania requires emissions inspections annually the counties of Allegheny, Beaver, Berks, Blair, Bucks, Cambria, Centre, Chester, Cumberland, Dauphin, Delaware, Erie, Lackawanna, Lancaster, Lebanon, Lehigh, Luzerne, Lycoming, Mercer, Montgomery, Northampton, Philadelphia, Washington, Westmoreland and York . The emissions inspection is to be completed before or with the annual safety inspection.   

Exemptions: 1. New vehicles with less than 5,000 miles on the odometer is exempt for one year after the first registration.   2. Pre-1975 model year vehicles 3. Vehicles with a GVWR of more than 9,000 lbs 4.  Vehicles registered as classics, antiques, collectibles, street rods, and specially constructed.

For more information visit: http://www.drivecleanpa.state.pa.us/default.htm

RHODE ISLAND

Rhode Island requires biennial emissions inspections to be conducted in conjunction with safety inspections.   

Diesel Vehicles: Diesel vehicles with a GVWR of 8500lbs or less are required to be tested for Safety and Emissions. Vehicles 1997 and newer may be tested at any Authorized Safety and Emissions Inspection Station. Vehicles 1996 and older must pass a diesel opacity test at one of the Diesel Opacity Stations. Heavy duty diesel powered vehicles (weighing over 8500 pounds) must be inspected annually at an "A" Class inspection station.

Exemptions: 1. New vehicles for first (2) model years or 24,000 miles, whichever comes first 2.  Vehicles registered as antiques 3.  Motor vehicles 25 years old or older must undergo inspection for safety and emissions, but are not failed if they do not pass emissions standards 4.  Vehicles insured as classic vehicles. 5.  Vehicles manufactured as kit cars may receive an alternate type of inspection.

SOUTH CAROLINA

South dakota.

Annual emissions inspections must be passed prior to registration and registration renewal in the counties of Hamilton, Davidson, Rutherford, Sumner, Williamson and Wilson and in the city of Memphis .   

Diesel Vehicles: Diesel vehicles are treated the same as gasoline powered vehicles for emission inspection purposes.

Exemptions: 1. Pre-1975 model year vehicles 2. Vehicles with a GVWR of more than 10,500 lbs 3. Vehicles with antique registration and plates

Annual emissions inspections must be passed prior to registration and registration renewal in the counties of Brazoria, Fort Bend, Galveston, Harris, Montgomery, Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, Tarrant, Travis, Williamson and El Paso .

Exemptions: 1. New vehicles for the newest two (2) model years 2. Vehicles with antique registration and plates 3. Vehicles 25 years old or older

For more information visit: https://www.dps.texas.gov/RSD/VI/consumerinfo/emissionTesting.htm

All vehicles registered in Davis, Salt Lake, Utah and Weber counties with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years. Vehicles with model years six years old and older (to 1967) must have an emission test every year.

Cache County vehicles with model years six years old and greater that have even-numbered model years, must have an emission test in even number years, and vehicles with odd-numbered model years must have an emission test in odd-numbered years. Vehicles with model years 1968 or older do not require an emission test.

Diesel Vehicles: Diesel vehicles are treated the same as gasoline powered vehicles for emission inspection purposes except emissions tests are not required for diesel vehicles registered in Utah county.

Exemptions: 1. New Vehicles 2. Pre-1968 model year vehicles 3. Vehicles registered as "vintage vehicles" or "custom"

For more information visit: http://dmv.utah.gov/register/inspections

On-board diagnostic systems (OBD) on 1996 and newer vehicles are checked as part of Vermont's annual vehicle safety inspection.

Diesel Vehicles: Diesel vehicles with a GVWR of 8,500 lbs or less with a model year of 1997 or newer are required to undergo emissions testing.

Exemptions: 1. Pre-1996 model year vehicles 2. Vehicles with a GVWR of more than 8,500 lbs

For more information visit: https://www.dmv.virginia.gov/vehicles/#emissions.asp

Annual emissions inspections are required for vehicles registered in the counties of Arlington, Fairfax, Loudoun, Prince William, and Stafford and cities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas Park and must be passed prior to vehicle registration and registration renewal.

Diesel Vehicles: All 1997 model year and newer diesel powered vehicles with a gross vehicle weight rating up to and including 8,500 pounds are required to undergo emissions inspections.

Exemptions: 1. New vehicles being titled for the first time for the first two years of registration 2. A vehicle with a model year of 25 years old or older 3. Vehicles with a GVWR of more than 10,000 lbs 4. Electric or other clean vehicles

Washington requires emissions testing in the year that a vehicle license is to expire (every other year) in certain zip codes within Clark, Snohomish, Spokane, King and Pierce counties. A test is also required for a transfer of ownership of a vehicle, unless the vehicle was tested within 365 days of the transfer.

Diesel Vehicles: All diesel-powered passenger vehicles weighing less than 6,001 pounds and all diesel vehicles model year 2007 and newer, regardless of weight are exempt from emissions inspections.

Exemptions: 1.  Motor vehicles that are less than five years old or more than twenty-five years old. 2. 2009 and newer models. 3. Hybrid Vehicles (specifically Toyota Prius and Honda Insight) 4. Street rod vehicles. 5. Vehicles with CARB (California Air Resources Board) Certification 

For more information visit: http://www.emissiontestwa.com/e/faq.aspx

WEST VIRGINIA

Emissions inspections are required for vehicles registered in Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha counties of Wisconsin every other year at the time of license plate renewal. Vehicles more than five model years old require inspection within 45 days following registration by a new owner.

Diesel Vehicles: All 2007 model year and newer diesel powered vehicles with a GVWR of up to 14,000 lbs are required to undergo emissions inspections.

Exemptions: 1. Vehicles manufactured before 1996. 2. Vehicles manufactured after 1996 that are not OBDII-compliant (must be verified at a test station). 3. A motor vehicle of a model year of 2006 or earlier that has a GVWR exceeding 8,500 pounds, and a motor vehicle of a model year of 2007 or later that has a GVWR exceeding 14,000 pounds 4.  Vehicles with a registered gross weight over 14,000 lbs. 5.  Vehicles registered as special design vehicles, Medal of Honor, and apportioned plates. 6. Electric vehicles

For more information visit: http://www.wisconsinvip.org/WivipPublic/

Emissions inspections are required for vehicles registered in the metro Phoenix area (Area A) and the metro Tucson area (Area B) and must be inspected for emissions no more than 90 days prior to registration. Registration renewal applications issued by the MVD will include the statement "Emission Test Required" when the vehicle is required to be tested.

Exemptions: 1. Vehicles registered outside of Phoenix and Tucson Metro Area zip codes. 2. Gasoline-powered and alternative fuel vehicles 5 model years old and newer (this does NOT include reconstructed vehicles). 2. Pre-1967 model year vehicles 3. Vehicles registered as "collectible" with collectible vehicle insurance

For more information visit: http://www.myazcar.com/

All diesel vehicles 1998 model or newer or an GVWR of less than 14,000 lbs must undergo smog inspections. 

1.  Gasoline powered 1975-year model or older 2.  Electric 3.  Natural gas powered with a GVWR rating of more than 14,000 lbs. 4.  Owners of vehicles less than 4 model years old can pay an Annual Smog Abatement Fee for the first 8 registration years instead of being required to provide a biennial smog certification.

In California, a “ collector motor vehicle ” is defined as a motor vehicle that is used primarily in shows, parades, charitable functions, and historical exhibitions for display, maintenance, and preservation, and is not used for primary transportation. Some collector cars that are model-year 1976 and newer are eligible for an abbreviated inspection performed by a state Referee. Details: https://www.bar.ca.gov/Consumer/Smog_Check_Program/Collector_Cars To qualify for an abbreviated inspection , a collector motor vehicle must be at least 35 years old and insured as a collector car. During an abbreviated inspection, the Referee will confirm the vehicle meets the criteria for a collector car, confirm proof of insurance as a collector car, and perform a Smog Check. The process will include a test of tailpipe emissions, a functional test of the fuel cap, and a visual check for liquid fuel leaks. 

For more information visit :  https://www.dmv.ca.gov/portal/

For information on Kit and Specially Constructed Vehicles visit:   https://www.dmv.ca.gov/portal/vehicle-registration/new-registration/register-a-specially-constructed-or-modified-vehicle/

The full counties of Boulder, Broomfield, Denver, Douglas and Jefferson and portions of Adams, Arapahoe, Larimer, and Weld  counties require a passing emission test to register a vehicle. Diesel Vehicles: All diesel vehicles model years 2007 – 2013 need an emission test biennially and all diesels model years 1986 – 2006 need emissions tests annually.

For more information visit :  https://aircarecolorado.com

Connecticut

• 2017, 2018, 2019, 2020 model year vehicles;
• Model year 1995 and older vehicles;
• Vehicles with a gross vehicle weight rating of 10,001 pounds or more;
• Composite Vehicles (vehicle must be titled as a composite vehicle);
• Full electric-powered (non-hybrid);
• Bicycles with motors attached;
• Motorcycles;
• Certain vehicles registered but not designed primarily for highway use;
• Farm vehicles; 
• Vehicles with Dealer, Repairer, or Transporter Plates 

For more information visit: http://ctemissions.com/ 

Exemptions: 1. New vehicles for the newest seven (7) model years 2. Pre-1968 model year vehicles. 3. Vehicles with a GVWR of more than 8,500 lbs

For more information visit:  https://www.dmv.de.gov 

If your vehicle is a 1996 – 2017 model year gasoline-powered car or light-duty truck (8,500 pounds gross vehicle weight rating or less) registered in Cherokee, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Henry, Paulding or Rockdale County, it must be emissions tested. 

Exemptions: 1. New vehicles for the newest three (3) model years 2. Motor vehicles twenty-five (25) model years old and older 3. Vehicles with a GVWR of more than 8,500 lbs 4. Vehicles granted non-conforming status. Kit cars, hot rods, gray market vehicles, and vehicles for which the owner is unable to obtain parts to repair the vehicle are provided with non-conforming status if they were granted non-conforming status before December 31, 1998.

Vehicles registered in Ada and Canyon Counties and the city of Kuna are required to undergo emissions testing for registration and then every other year.

Diesel vehicles are required to be tested in the same manner as gasoline powered vehicles and are provided with the same exemptions.

Exemptions: 1. Motor vehicles with a model year less than five years old. 2. Pre-1981 model year vehicles 3. Electric or hybrid motor vehicles 4. Classic automobiles as defined by Idaho Code 5. Vehicles with a GVWR of less than 1,500 lbs 6. Vehicles with a GVWR of greater than 14,000 lbs For more information visit: http://www.idahovip.org/

Vehicles registered in specific ZIP codes in the Chicago  and Metro-East St. Louis areas are subject to testing every two years.

Exemptions: 1. New vehicles for the newest four (4) model years 2. Pre-1968 model year vehicles 3. Vehicles of model year 1995 or before that were in compliance with the Illinois Vehicle Emissions Inspection Law on February 1, 2007 4. Electric Vehicles 5. Vehicles registered as antiques, expanded use antiques, customs and street rods 6. Vehicles for which a Junking Certificate has been issued by the Secretary of State pursuant to the Illinois Vehicle Code (625 ILCS 5/3-117). 7. Vehicles of model year 2006 or earlier with a manufacturer gross vehicle weight rating between 8,501 and 14,000 pounds. 8. Vehicles with a manufacturer gross vehicle weight rating greater than 14,000 pounds.

Vehicles registered in Lake County and Porter County  are required to undergo emissions testing biennially.

Exemptions: 1. New vehicles for the newest four (4) model years 2. Pre-1976 model year vehicles 3. Kit cars and dune buggies that meet established criteria for a "Specialty Exemption"; specialty exemptions must be applied for and granted every two years 4. Show cars that meet established criteria for a "Show Car Exemption"; show car exemptions must be applied for and granted every two years 5. Ceremonial vehicles 6.  Antique vehicles 7. Vehicles with a GVWR of more than 9,000 lbs. 8. Electric Vehicles

For more information visit: https://www.in.gov/bmv  or  https://cleanaircarcheck.com/

Vehicles registered in the five-parish area around Baton Rouge consisting of Ascension, East Baton Rouge, Iberville, Livingston, and West Baton Rouge parishes are subject to emissions testing during an annual combined safety/emissions inspection.

Exemptions: 1. New vehicles for the newest two (2) model years 2. Pre-1980 model year vehicles 3. Vehicles with a GVWR of more than 10,000 lbs For more information visit:   https://deq.louisiana.gov/

For more information visit: https://www.maine.gov/dep/

OBD testing is performed on vehicles model year 1996 and newer and an idle tailpipe and gas cap test is administered on model year 1977-1995 vehicles.

• 1995 or older under 8500 Gross Vehicle Weight
• Vehicles weighing more than 26,000 pounds gross vehicle weight
• Vehicles registered as a farm truck, farm truck tractor or farm area vehicle
• Historic or Antique vehicles
• New vehicles and qualified hybrids for the first 36 months after titling and registration
• Vehicles registered to senior citizens over 70 or vehicles registered with hard metal disable tags and who drive 5,000 miles per year or less (if co-owned, both owners must qualify for the waiver) can apply for a waiver for the balance of the two year cycle. Mileage must be recertified every two years to continue to received the waiver
• Vehicles registered as a Class N street rod vehicle

For more information visit:

https://mva.maryland.gov/

Massachusetts

Massachusetts performs an OBD emissions test annually on vehicles that are less than 15 years old.

Diesel Vehicles: Diesel vehicles are required to undergo emissions testing based on their weight and model year. Vehicles that require testing: Model years 2005 and newer light-duty diesel vehicles (with a Gross Vehicle Weight Rating or "GVWR" of 8,500 pounds or less), Model years 2007 and newer medium-duty diesel vehicles (with a GVWR of 8,501 to 14,000 pounds). Model year 1984 and newer, medium- and heavy-duty diesel vehicles (with a GVWR of 10,001 pounds or more) not subject to an OBD test.

Exemptions: 1. New vehicles delivered to Massachusetts owners 2. Vehicles 15 years old and older  3. Electric Vehicles

For more information:  https://www.mass.gov/orgs/massachusetts-department-of-environmental-protection

Mississippi

Diesel Vehicles: Diesel vehicles must undergo OBD emissions testing in the same way as gasoline powered vehicles. Diesel vehicles with a model year of 1996 or older are exempt. 

Exemptions: 1. Vehicles with a model year of 1995 or older 2.  New motor vehicles, during the model year of the vehicle and the following year, provided the odometer reading is less than 6,000 miles at the time of the sale 3.  Motor vehicles sold for junk, salvage, or rebuilding 4. Vehicles that display historic or street rod plates 7. Vehicles driven fewer than 12,000 miles between biennial safety inspections (must submit a mileage based exemption request) 8. Vehicles with a GVWR of over 8,500 lbs. 9.  Vehicles powered exclusively by solar power, electric, hydrogen

For more information visit:   https://dor.mo.gov/motorv

Nevada requires emissions testing on vehicles registered in the urban areas of  Clark County (Las Vegas) and Washoe County (Reno) before the vehicle can be registered or its is registration renewed.

For more information visit:  http://www.dmvnv.com/  

New Hampshire

New Hampshire requires all automobiles and light-duty trucks less than 20 years old to have an OBD emission system inspection.

Diesel Vehicles: Model year 1997 and newer diesel vehicles with a GVWR of 8,500 lbs or less must undergo emissions testing.

Exemptions: 1. Vehicles with a GVWR of more than 8,500 lbs 2. Vehicles 20 model years old or older

For more information visit: https://www.nh.gov/safety/divisions/dmv/index-original.htm

New Jersey requires emissions testing every two years for vehicles model year 1996 and newer with a GVWR of 8,500 lbs or less, 5 model years old and older.

Diesel Vehicles: Light duty (8,500 lbs or less) diesel powered vehicles model year 1997 and newer, are required to undergo diesel emissions testing. 

• New vehicles for the newest five (5) model years
• Vehicles model year 1995 & older with a GVWR 8,500 pounds or less.
• Gasoline powered vehicles registered passenger, model year 2007 & older with a GVWR 8,501 to 14,000 pounds.
• Vehicles model year 2013 & older with a GVWR 14,001 pounds or more.
• Vehicles registered as "historic vehicles"
• Approved Collector Vehicles which are less than 25 years old
• 100% Electric Vehicles

For more information visit:  https://www.state.nj.us/mvc/

New Mexico requires emissions testing at the time of registration for vehicles registering in Bernalillo County. All 1986 and newer motor vehicles up to 10,000 lbs GVW must pass an emission test every two years and at change of ownership.

Exemptions: 1. New vehicles for four years following initial registration from the date of manufacturer's certificate of origin (MCO). 2. Dedicated Electric Vehicles. 3. Vehicles that are only used for legally sanctioned competition. 4. Vehicles with a GVWR of more than 10,000 lbs. 5. Vehicles that are not operated on public streets and highways.

6. Vehicles older than 35 years. 

For more information visit:  http://www.cabq.gov/

New York requires annual emissions testing in conjunction with the state's annual safety inspection. Non-exempt vehicles that have a gross vehicle weight rating (GVWR) less than 8,501 pounds and that are model year 1996 or newer must undergo an OBD inspection. Vehicles manufactured prior to 1996 are subject to a low enhanced inspection. 

Exemptions: 1. New vehicles for the newest two (2) model years 2. Vehicles that  are more than 25 model years old 3. Electric vehicles  3. Vehicles registered with historical plates

For more information visit: https://dmv.ny.gov

North Carolina

Motor vehicles registered in 22 North Carolina counties must pass an emissions inspection, which is conducted at the same time as the safety inspection. These counties are:  Alamance, Buncombe, Cabarrus, Cumberland, Davidson, Durham, Forsyth, Franklin, Gaston, Guilford, Iredell, Johnston, Lee, Lincoln, Mecklenburg, New Hanover, Onslow, Randolph, Rockingham, Rowan, Wake, and Union. 

Exemptions: 1. Some light-duty vehicles less than 3 years old or have fewer than 70,000 miles 2. Vehicles that are 20 model years old or older 3. Vehicles with an antique automobile license plate 

For more information visit:   https://www.ncdot.gov/dmv

North Dakota

Exemptions: 1. New vehicles for the newest four (4) model years 2. Vehicles that are 26 model year old or older 3. Vehicles with a GVWR of more than 10,000 lbs 4. Vehicles registered as "historical" or "collector" vehicles 5. Parade and exhibition vehicles 6. Electric vehicles (one-time verification inspection required)

For more information visit:  https://epa.ohio.gov/

Oregon's Department of Environmental Quality requires emissions testing in the Portland and Medford metropolitan areas prior to registration and as a part of the registration renewal process.  

Exemptions: 1. Pre-1975 model year vehicles (Portland) 2. Vehicles that are 21 model year old or older (Medford) 3. Newer model year vehicles (for 2020 this extend to model-year 2017)

For more information visit: https://www.oregon.gov/deq

Pennsylvania

Pennsylvania requires gasoline powered cars, vans and light-duty trucks (9,000 lbs. or less gross vehicle weight), with a model year 1975 and newer to undergo emissions inspections annually the counties of Allegheny, Beaver, Berks, Blair, Bucks, Cambria, Centre, Chester, Cumberland, Dauphin, Delaware, Erie, Lackawanna, Lancaster, Lebanon, Lehigh, Luzerne, Lycoming, Mercer, Montgomery, Northampton, Philadelphia, Washington, Westmoreland and York . The emissions inspection is to be completed before or with the annual safety inspection.   

Exemptions: 1. New vehicles with less than 5,000 miles on the odometer is exempt for one year after the first registration. 2. Any vehicle driven fewer than 5,000 miles during the 12-month period immediately preceding the inspection.   2. Pre-1975 model year vehicles 3. Vehicles with a GVWR of more than 9,000 lbs 4.  Vehicles registered as classics, antiques, collectibles, street rods, and specially constructed.

For more information visit:  http://www.drivecleanpa.state.pa.us

Rhode Island

Rhode Island requires biennial emissions inspections to be conducted in conjunction with safety inspections.   

Diesel Vehicles: Diesel vehicles with a GVWR of 8500lbs or less are required to be tested for Safety and Emissions. Heavy duty diesel powered vehicles (weighing over 8500 pounds) must be inspected annually at an "A" Class inspection station.

Exemptions: 1. New vehicles for first (2) model years or 24,000 miles, whichever comes first 2. Vehicles registered as antiques 3. Motor vehicles 25 years old or older must undergo inspection for safety and emissions, but are not failed if they do not pass emissions standards 4. Vehicles manufactured as kit cars may receive an alternate type of inspection.

For more information visit: https://www.riinspection.org/

South Carolina

South dakota.

Annual emissions inspections must be passed prior to registration and registration renewal in the counties of Hamilton, Davidson, Rutherford, Sumner, Williamson and Wilson and in the city of Nashville.  

Exemptions: 1. Pre-1975 model year vehicles 2. Vehicles with a GVWR of more than 10,500 lbs 3. Vehicles over 25 years old with antique registration and plates 4. New vehicles being registered for the first time 5. Electric vehicles 

For more information visit:  http://www.tnvip.org/

Annual emissions inspections must be passed prior to registration and registration renewal in the counties of Brazoria, Collin, Dallas, Denton, El Paso, Ellis, Fort Bend, Galveston, Harris, Johnson, Kaufman, Montgomery, Parker, Rockwall, Tarrant, Travis, and Williamson.

Exemptions: 1. New vehicles for the newest two (2) model years 2. Vehicles with "Antique" registration and plates 3. Vehicles 25 years old or older 4. Vehicles registered as "Classic" are only required to have a safety inspection 5. Kit Cars are required to meet the emissions standards for the year the vehicle is assembled.

For more information visit:  https://www.dps.texas.gov

All vehicles registered in Davis, Salt Lake, Utah and Weber counties with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years. Vehicles with model years six years old and older (to 1968) must have an emission test every year.

For more information visit: https://dmv.utah.gov/

On-board diagnostic systems (OBD) on light-duty vehicles that are 16 model years or newer, having a GVWR of 8,500 lbs or less are checked as part of Vermont's annual vehicle safety inspection.

Exemptions: 1. Vehicles older than 16 model years  2. Vehicles with a GVWR of more than 8,500 lbs

For more information visit: https://dec.vermont.gov/

Diesel Vehicles: Diesel powered vehicles are exempt, except they are  not  exempt from the emissions testing program requirements when they have: 1. A model year newer than 1996, and 2. A Gross Vehicle Weight Rating (GVWR) less than 8,501 lbs., (if GVWR is not available, empty and gross weights will be used) and 3. A registration that expires in July 2007 or later.

Exemptions: 1. New vehicles being titled for the first time for the first four years of registration 2. Used vehicles of the current and three previous model years  3. A vehicle with a model year that is more than 25 years old before January 1 of the current calendar year.  4. Vehicles with a GVWR of more than 10,000 lbs 5. Electric or other vehicles exclusively powered by clean fuel

For more information visit: https://www.dmv.virginia.gov/

Washington D.C.

Exemptions: 1. New personal vehicles that have a manufacturer’s Certificate of Origin do not need to be inspected and will receive a 4 year new car inspection sticker upon registration through the dealership. The law still requires all vehicles to display the valid inspection sticker. 2. Personal vehicles that are manufactured  pre-1968 do not need to be inspected. 3. Designated as a zero emissions vehicle.

For more information visit:   https://dmv.dc.gov

West Virginia

Emissions inspections are required for vehicles registered in Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and Waukesha counties of Wisconsin every other year at the time of license plate renewal. Vehicles more than five model years old require inspection at change of ownership and at time of registration renewal (every two years). 

Exemptions: 1. Vehicles manufactured before 1996 2. The newest 3 model year vehicles 2. Vehicles manufactured after 1996 that are not OBDII-compliant (must be verified at a test station). 3. A motor vehicle of a model year of 2006 or earlier that has a GVWR exceeding 8,500 pounds, and a motor vehicle of a model year of 2007 or later that has a GVWR exceeding 14,000 pounds 4.  Vehicles with a registered gross weight over 14,000 lbs. 5.  Vehicles registered as special design vehicles, Medal of Honor, and apportioned plates. 6. Electric vehicles

For more information visit: https://www.wisconsinvip.org

WHAT IS AN EMISSIONS TEST AND WHY SHOULD YOU GET ONE?

Working toward a cleaner environment is a team sport. The more people participating, the better! That's why most states now require vehicle emissions testing to reduce air pollution. Jiffy Lube ® is here to break it down for you: 

• Learn more about emissions testing
• Maintain your car, truck, SUV or minivan to comply with state and local regulations

Answers to the top 4 questions about emissions testing

• What is an emissions test? Sometimes referred to as smog checks, emissions testing measures the level of pollutants — including hydrocarbons, oxygen, carbon monoxide, and oxides of nitrogen — present in vehicle exhaust.  
• Do I need an emissions test? You likely do. More than 30 states now require some level of testing on registered vehicles. If you’re not sure what’s currently required where you live, contact your state’s environmental agency for accurate, up-to-date information.
• How long does an emissions test take? Emissions testing typically takes between 15-30 minutes. Since there’s no standard federal test — each state and municipality can set its own requirements — the timing can vary. After all, more requirements take more time.

LET’S GET READY!

Now that we have answered “What is an emissions test?”, we can help you prepare.

• Call ahead to confirm the hours that emissions testing is performed and make an appointment. 
• Certificate of vehicle registration
• Prior inspection report
• Letter from the department that oversees the emissions testing program in your city or state
• Renewal notice, which you may have received via mail, eNotify, or email

Be sure to check with your state’s environmental agency for a current list of required documents before you go.

NOW FOR THE TEST

Most cars (model year 1996 and newer) have an OBD (Onboard Diagnostic II) port, usually located near the steering column. A trained Jiffy Lube technician will attach a diagnostic device to the OBD port to determine if there are any Diagnostic Trouble Codes (DTCs). 

If your vehicle is older, or, if for some reason the OBD is not ready for testing, a tailpipe emissions test will be performed. The Jiffy Lube technician will place a probe in the tailpipe that can detect emissions. 

Your vehicle’s emission system will be visually inspected, too. Designed to control exhaust and pollutants, the emission system can reduce the harmful gasses that escape into the air. But to perform this vital function, it has to be operating properly. Like other vehicle systems — such as the battery and the brakes — the emission system sustains wear-and-tear with every mile you drive. So, beyond its role in the emissions test, this visual once-over can help keep you running cleanly and efficiently by catching a small problem before it becomes a major one. This is why your answer to “Do I need an emissions test?” should always be “yes.”

PASS OR FAIL

Those are the only two outcomes of an emissions test. If you pass, great! You’ll receive a certification — usually good for 90 days — that you can present when you renew your vehicle’s registration. 

But what if your vehicle fails? Naturally, that’s not the news anyone wants to hear. But when you visit Jiffy Lube for your emissions test, you can rely on a trained technician to explain where and what the problem is and how to correct it. If you have questions about the test results, you’re encouraged to ask. Rest assured, no work will be done on your vehicle without your approval.

RELY ON JIFFY LUBE

Hopefully now you can answer the question “what is an emissions test?”, and that you will make Jiffy Lube your choice to perform this important test. With more than 2,000 locations across North America , a Jiffy Lube service center is likely nearby, ready to perform the vehicle maintenance that will help keep your vehicle operating as engineered. 

One of the many reasons why Jiffy Lube is proud to use Pennzoil ® products, which meet or exceed manufacturer recommendations (where applicable), is that Pennzoil is also working to reduce its carbon footprint. Pennzoil is doing this by using 25% recycled resin in its bottles and testing the use of even more, improving the energy efficiency of its facilities and increasing its use of renewable energy. 

READ MORE ABOUT IT

Please come back to our Resource Center often. Experts regularly add interesting content.

Please note: Not all services are offered at all Jiffy Lube locations. Please call ahead or check the jiffylube.com website to ensure the service is available.  

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Location & Wait Times

LOW PROFILE RIMS & OVERSIZED TIRES -  Please note that front-wheel and all-wheel drive vehicles with low-profile rim sizes 17-inches-or-larger in diameter or vehicles with wheel sizes larger than 34 inches must be tested on special dynamometers capable of testing vehicles with these unusual features. Please take your vehicle to the  Sheridan, Boulder, Ken Caryl or Fort Collins  stations for inspection. These are the only stations in the program area equipped with specialized dynamometers that can test these vehicles.

Avoid waiting.   Currently, due to the COVID-19 related station closures, all open stations are extremely busy. Mondays all day and early mornings are the busiest times. Mid to late afternoons are the least busy times.  High volume times to always avoid are Mondays, the first business day after ANY holiday, and the last few days of the month.

Wait Time Note:  Please keep in mind that the wait times are estimations based on recent station activity. The wait times are updated approximately every 15 minutes.

Find closest location

• Arvada: Wait is 17 mins 5185 Marshall St., Arvada CO 80002 T: 303-456-7090
• Aurora: Wait is 8 mins 12042 E. 30th Ave., Aurora CO 80010 T: 303-456-7090
• Boulder: Wait is 8 mins 5655 Airport Blvd., Boulder CO 80301 T: 303-456-7090
• Broomfield: Wait is 10 mins 11609 Teller St., Broomfield CO 80020 T: 303-456-7090
• Castle Rock: Wait is 17 mins 541 Topeka Way, Castle Rock CO 80104 T: 303-456-7090
• County Line: Wait is 6 mins 8494 S. Colorado Blvd., Littleton CO 80126 T: 303-456-7090
• Dacono: Wait is 10 mins 5222 Silver Peak Ave., Dacono CO 80514 T: 303-456-7090
• Denver (Lipan): Wait is 14 mins 2300 S. Lipan St., Denver CO 80223 T: 303-456-7090
• Denver SE (Warren): Wait is 29 mins 10190 E. Warren Ave., Denver CO 80231 T: 303-456-7090
• Fort Collins: Wait is 7 mins 835 S.E. Frontage Rd., Fort Collins CO 80524 T: 970-247-8378
• Golden: Wait is 7 mins 15335 W. 44th Ave., Golden CO 80401 T: 303-456-7090
• Greeley: Wait is 6 mins 2844 W. 30th St., Greeley CO 80631 T: 970-247-8378
• Ken Caryl: Wait is 1 mins 10727 Centennial Rd., Littleton CO 80127 T: 303-456-7090
• Longmont: Wait is 3 mins 4040 Rogers Rd., Longmont CO 80503 T: 303-456-7090
• Loveland: Wait is 11 mins 7001 N. Franklin Ave., Loveland CO 80538 T: 970-247-8378
• Northglenn: Wait is 43 mins 1950 E. 112th Ave., Northglenn CO 80233 T: 303-456-7090
• Parker: Station Open 10199 Park Glenn Way, Parker CO 80134 T: 303-456-7090
• Sheridan: Wait is 31 mins 2802 W. Mansfield Ave., Sheridan CO 80110 T: 303-456-7090

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DMV & Emissions Testing Locations In Idaho

Idaho smog check / emissions test.

The state of Idaho requires vehicle emissions tes ting in the Treasure Valley Airshed which makes up the City of Kuna and, Ada and Canyon counties.  The State of Idaho started the program in 1984 in Ada County and extended it to the City of Kuna and Canyon county in 2010.  

If you know you need an Emissions test done click here to select your county and find the nearest location.

Requirements to Pass the Idaho Smog Check

The State of Idaho put their vehicle emissions test ing program in place in order to reduce the amount of vehicle ozone air pollution emitted into the atmosphere. The Federal government recognized The Treasure Valley Airshed as a non-compliant are not meeting the air quality guidelines set forth by the Clean Air Act.

Currently, there are twenty locations located throughout Caldwell and Nampa that offer inspections for owners of vehicles that are looking to past the emissions inspection. Many offer their services during the week from 8 to 5, but you will need to call them in order to be certain of their hours, testing procedures, and required documents.

Smog Check Exemptions for Idaho Drivers

The State of Idaho requires motor vehicles to pass a smog check before the vehicle can become registered. There are a few exemptions to this rule, they are as follows:

• The vehicle’s made in the 1981 model year or earlier
• The vehicle’s not registered or used in Ada County, Idaho
• Motorhomes and motorcycles
• New vehicles less than a five years old
• Vehicle’s with weighing less than 1,500 pounds
• Vehicle’s registered as Idaho “Old Timer” or Classic vehicles
• Farm tractors and other eligible farm equipment
• Vehicles registered on a prorated basis
• Electric and hybrid vehicles
• Motor vehicles weighing more than 14,001

If your vehicle falls into one of these categories, it’s exempt from getting a smog check. Contact the Ada County Air Quality Board at 208-377-9191 for further information.

Smog Check Fees

The fee for a smog check in Idaho is $11 per vehicle test.

Performing Emissions Testing in Idaho

The Idaho DMV mails renewal reminders to vehicle owners in Ada and Canyon counties and sends the first notice a month before the test’s due date. The notice provides the test due date and testing information for the specific vehicle requiring testing and will provide a list of available local test sites Vehicle owners usually have until the end of the specified month to complete the test.

The Idaho DMV sends the second notice at the end of the end of that month reminding the owner to get their vehicle tested in a timely fashion. The owner will then have the next 35 days to get their vehicle tested, or The Idaho Department of Transportation will revoke their vehicle registration.

On-Board Diagnostic Tests – The Idaho DMV will administer an ODBII test on all motor vehicles made in the 1996 or newer model years in Ada and Canyon counties. The OBDII system installed in U.S. manufactured vehicles made in the 1996 and newer model years is a mechanical issue early-warning system. The system records the vehicle’s performance by administering a specific kind of test referred to as a “Monitor”. Monitors test a vehicle’s primary emissions components and subsystems. While the key is in the ignition and the engine is off, a test technician will make sure the vehicle’s DLC (Data Link Connector) works properly. Then, the test technician hooks an emissions diagnostic tool up to your vehicle’s DLC using a cable to allow the technician’s diagnostic tool to communicate with the vehicle’s OBD II system. The Idaho DMV test technician can check your vehicle’s engine and emissions systems, and see if any monitors state a “Not Ready” status. If there are too many monitors stating a “Not Ready” status, then the vehicle will not pass the test. The test personnel can complete the test in around 2 minutes.

Two-Speed Idle (TSI) Test – Idaho DMV personnel perform the TSI Test on vehicles made from 1991 through 1995. A Test technician measures to see how much hydrocarbons (HC), carbon monoxide (CO), and carbon dioxide (CO2) the vehicle emits from its tailpipe. Like the name implies, there are two speeds used in the TSI test. There’s Low RPM test (revolutions per minute) that measures a vehicle’s emissions at low RPM and the high RPM test measuring the vehicle’s emissions at a higher RPM.

Gas Cap Test – The Idaho DMV requires a Gas Cap Test. Vehicles older than 1995 will have their gas caps inspected visually to make sure they seal properly.  Idaho registered vehicles made in the 1996 model year or later will have the ODBII system check their gas cap automatically.

When test personnel finishes administering an inspection the vehicle owner will receive a computer-generated Vehicle Inspection Report (VIR) containing the results of the emissions and fuel system tests.

Failed Smog Inspections – Next Steps

If a vehicle fails a smog check, they will receive a Vehicle Inspection Report (VIR) Diagnosing a vehicle to understand the reason it did not pass an emission inspection can be complicated. Vehicle owners are free to choose a technician or repair the vehicle themselves. However, diagnosing and repairing an emissions-related mechanical issue can be complex. The Idaho DMV strongly advises vehicle owners select a state-qualified emissions repair technician who has experience with emissions systems and who is able to diagnose and repair the vehicle correctly.

If a vehicle fails its initial vehicle emissions test , the vehicle owner has 30 days to get the vehicle retested for free after addressing the mechanical issues that caused the vehicle to fail its test. If your vehicle still does not pass the first retest, any additional retests will cost $11.00.

Low Income? Try Applying for an Idaho Hardship Waiver

If an Idaho vehicle owner is experiencing economic hardship, they may qualify for a Hardship waiver if their vehicle is unable to pass the test. The Idaho DMV  reviews hardship waivers on a case-by-case basis. Hardship waivers are good for one year and vehicle owners can apply for two hardship waivers consecutively and must provide information about their current income and expenses. After that, if they are still experiencing difficult times financially, they may apply for a Repair waiver after they spend $200 to try to repair their vehicle after not passing an Idaho emissions test.

Moved to Idaho – Smog Check Requirements

Motor vehicle owners moving to Ada and Canyon counties, or the City of kuna with gasoline vehicles made after the 1981 model year and at least 5 years old must get a smog check. First, they must get their vehicle registered. Then, they will receive a vehicle testing notice from the Idaho Department of Motor Vehicles. The Idaho DMV suggests vehicle owners not get their vehicle tested until they receive their testing notice. The Idaho DMV mails notices to the address provided to them by the owner when they registered their vehicle.

Special Tips to Pass the Idaho Emissions Test

The State of Idaho suggests vehicle owners get their vehicle’s tested within 90 days after receiving their vehicle testing notice. Allow for extra time to get any needed repairs done before your registration expires. Also, if a vehicle owner plans to be out of town during the date when their registration expires, the extra 90 days will give them time to meet the deadline. Here are some tips to keep in mind to ensure passing an Idaho   vehicle emissions test :

• Make sure the vehicle does not have its “Check Engine” light on; If it does, it will not pass the test. To fix,  check to make the gas cap is on tight. If it is not, tighten it and drive around to see if the light goes off.  
• Follow the vehicle’s recommended maintenance schedule. Many of the mechanical issues that cause vehicles to fail their tests can be addressed during a routine check-up
• If your vehicle is a make and model year when catalytic converters came standard on the vehicle, make sure your vehicle has one and is not malfunctioning; If it does not have one or it is not working, it will not pass the test
• Allow your vehicle to run for at least 10 minutes before it takes a test to ensure an accurate reading
• Research your vehicle manufacturer’s recalls Technical Service Bulletins (TSBs), and warranties before getting any repairs done. The cost of their repair may be covered by the manufacturer.
• If your vehicle’s On-Board Diagnostic (OBDII) system is showing trouble codes, make sure to get them fixed by a certified emissions mechanic. Do not just try to clear the codes.Test personnel will know and the vehicle will not pass inspection.
• If your vehicle is misfiring when it is idling, make sure to get this addressed before taking the test
• Check your vehicle’s gas cap and make sure it’s not broken. Keep the sealing surfaces in the cap clean so it can make a good seal
• If a vehicle’s battery is brand new, drive the vehicle for a couple of days before taking it to get an On-Board Diagnostics test so as to allow the OBD system to reset
• Make sure the vehicle’s oil is not dirty. Get the oil changed on a routine basis
• Maintain the recommended air pressure in your vehicle’s tires
• Inspect your vehicle’s hoses and belts for wear. Get them replaced if necessary
• Get any mechanical issues with your vehicle’s transmission address and fixed. Transmissions problems can affect your vehicle’s emissions and cause your vehicle to fail its test.
• If your motor vehicle’s emissions system has a mechanical issue, check your manufacturer’s warranty. Federal law states emissions systems on vehicles made in the 1995 and newer model years must have their emissions systems warrantied for two years or 24,000 miles. 
• If the OBDII diagnostic system or catalytic converter on your vehicle made in the 1995 model year or newer has a mechanical issue, check your vehicle’s manufacturer’s warranty also. Federal regulation states these vehicles must have a warranty on their OBDII and catalytic converters for eight years or 80,000 miles.

Find Smog Check Stations Near Me

To stay in compliance of the State of Idaho’s vehicle emissions test requirements, Idaho-registered drivers required to get their vehicle’s to pass a vehicle emissions test can check out our DMV & Emissions Testing Locations in Idaho pages below to find a DMV office or testing location in your area.

Smog Check Stations in Boise, Idaho

The capital city of Boise, in Ada County, Idaho, has a population of 380,000. Idaho-registered drivers required to get their vehicle’s tested, and living in Boise can check out our DMV & Emissions Testing Locations in Boise, Idaho page to find a DMV office or testing location in your area.

Smog Check Stations in Caldwell, Idaho

The city of Caldwell, in Canyon County, Idaho, has a population of 184,000. Idaho-registered drivers required to get their vehicle tested, and living in Caldwell can check out our DMV & Emissions Testing Locations in Caldwell, Idaho page to find a DMV office or testing location in your area.

Smog Check Stations in Kuna, Idaho

The City of Kuna, in Ada County, Idaho has a population of around 15,000 and is a suburb of Boise. Idaho-registered drivers required to get their vehicle tested, and living in the City of Kuna can check out our DMV & Emissions Testing Locations in Kuna, Idaho page to find a DMV office or testing location in your area.

Auto Insurance

Getting car insurance is one of the requirements that vehicle owners need to fulfill in order to register and claim the title for their vehicles in the Department of Motor Vehicles. Vehicle insurance companies in the United States offer full auto insurance and liability coverage that protects the drivers in case of a traffic accident.

• Ada County, ID
• Bannock County, ID
• Bingham County, ID
• Blaine County, ID
• Bonner County, ID
• Boundary County, ID
• Camas County, ID
• Canyon County, ID
• Caribou County, ID
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