Virginia Emissions Inspection: Who Needs It in Northern Virginia

Virginia's Air Check program requires emissions inspections for certain vehicles registered or operated primarily in Northern Virginia.

Information checked against official sources on October 24, 2026.

Independent guide. This site is not run by any state DMV, state police or environmental agency, and it is not affiliated with any repair shop or inspection station, including any business with a similar name. Rules and fees change, so confirm anything important with the official source linked at the bottom of each page.

Where it applies

The program area includes the counties of Arlington, Fairfax, Loudoun, Prince William and Stafford, and the cities of Alexandria, Fairfax, Falls Church, Manassas and Manassas Park. Vehicles must receive a passing emissions inspection or a waiver to register or renew the registration with the Virginia DMV. The test is needed every two years.

The DMV tells you whether an inspection is needed: check the registration renewal card for the statement “Emissions Inspection Required.” You can also check through the DMV's online vehicle registration renewal service.

Which vehicles

• Gasoline-powered passenger or property-carrying vehicles less than 25 model years old (before January 1 of the current year) with a manufacturer's GVWR of 10,000 pounds or less.
• Diesel-powered passenger or property-carrying vehicles of model year 1997 or newer with a GVWR of 8,500 pounds or less.
• Government vehicles registered or operated primarily in the program area are subject to the program.

Exempt vehicles

• Vehicles manufactured and titled for the current model year or any of the three immediately preceding model years (DMV may require a test for newer vehicles originally titled in another state).
• Motorcycles, registered antique vehicles, fire and rescue equipment, tactical military vehicles and registered military surplus vehicles.
• Qualified hybrid vehicles rated at least 50 mpg in the EPA city test (48 mpg for model years 2008 and 2009).
• Vehicles powered exclusively by clean fuels such as natural gas, propane, hydrogen or electricity.

Some exempt vehicles are still subject to the On-Road Emissions Program and may be asked for an emissions confirmation test if they are flagged at a remote sensing site.

Test types

• 1980 and older gasoline vehicles: two-speed idle test.
• Most 1981 to 1995 vehicles up to 8,500 lbs GVWR: ASM test on a dynamometer. Some, such as all-wheel-drive vehicles, get the two-speed idle test instead.
• Most 1996 and newer vehicles: a test of the OBD system. Some may still need a tailpipe test.
• 1997 and newer diesels up to 8,500 lbs GVWR: OBD test, with no tailpipe test, visual component inspection or visible smoke inspection.

Gasoline vehicles also get an emissions control component inspection and a visible smoke inspection.

Timing

For a two-year registration you can have the emissions inspection done up to 90 days before the registration expires. If it is done earlier than 90 days before, you may only be eligible for a one-year registration.

Emissions versus safety

Virginia's emissions inspection is separate from the state safety inspection. The safety inspection is required once a year (see the Virginia guide).

A vehicle can be rejected from testing before the emissions test if the pre-inspection safety check finds problems such as unsafe tires, fluid leaks, exhaust leaks, visible smoke, a missing gas cap or engine and drive train problems. Those items must be fixed before the test can be done safely.

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