Under the Clean Air Act,manufacturers may sell vehicles without prior certification from the Environmental Protection Agency (EPA)if they have met the required standards in all prior checks.

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Under the Clean Air Act, manufacturers must obtain certification from the EPA before selling vehicles in the United States. The EPA conducts tests to ensure that the vehicles meet emissions standards and other requirements. Manufacturers cannot sell vehicles that have not been certified by the EPA.

Under the Clean Air Act,manufacturers May Sell Vehicles Without Prior