Vehicle Emissions Laws and Testing Rules in the US

Emissions.org provides a detailed review of all the states’ vehicle emissions laws, testing rules, procedures, and testing locations.  The first Emissions testing was performed in California in 1966. Now, there are currently 32 states that require some form of testing for vehicles.  Testing ensures that air pollution from vehicles are at minimal levels. Any vehicle emitting too many pollutants needs to repair the issue on their vehicle.

Emissions Vehicle Testing

US States have different emissions standards

Each state differs in terms of standards related to air pollution that comes from vehicles. As well costs, testing policies, guidelines, fees, penalties, testing locations, retesting directions, procedures, repair assistance for low income earners, and steps to dispute a test result. Some states do not require any testing to be carried out at all. Therefore some other states require emissions testing only within certain counties. Few states require all vehicles to test emissions on a set basis. In some states, testing is only possible within certain inspection areas, while other states offer statewide testing locations.  Most states have established standard fees. But there are some states, for example California, that allow the emissions inspections service stations to set their own price.

Furthermore, to review the needed information – general rules, testing locations, hours and schedule, failures and retests procedures, click on the map below. Choose the state whose specific information you want to view and read. Or, you can try Testing Near Me section of the website.

Especially relevant to mention is that every state has a department in charge for such inquiries, complaints, questions, and policies. Depending on the state, probably it can be its own department, a department of the DMV, the DMV itself, the Department of Consumer Affairs, or something else.  As a result, the contact information for each state is covered within that state’s section on the website. Especially relevant to your query is our Article section as well, where we will try to bring and publish the latest information related to emissions state wide.

Please Click On Your State Below

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