Emission Control System Performance Warranty Regulations and Voluntary Aftermarket Part Certification Program (Renewal)

Under Section 206(a) of the Clean Air Act (42 USC 7521), on-highway engine and vehicle manufacturers may not legally introduce their products into US commerce unless EPA has certified that their production complies with applicable emission standards. Per section 207(a), original vehicle manufacturers must warrant that vehicles are free from defects in materials and workmanship that would cause the vehicle not to comply with emission regulations during its useful life. Section 207(a) directs EPA to provide certification to those manufacturers or builders of automotive aftermarket parts that demonstrate that the installation and use of their products will not cause failure of the engine or vehicle to comply with emission standards. An aftermarket part is any part offered for sale for installation in or on a motor vehicle after such vehicle has left the vehicle manufacturers production line (40 CFR 85.2113(b)). Participation in the aftermarket certification program is voluntary. Aftermarket part manufacturers or builders (manufacturers) electing to participate conduct emission and durability testing as described in 40 CFR part 85, subpart V, and submit data about their products and testing procedures.

The latest form for Emission Control System Performance Warranty Regulations and Voluntary Aftermarket Part Certification Program (Renewal) expires 2023-06-30 and can be found here.