A bill to amend the Clean Air Act to promote competitiveness in the motor vehicle aftermarket and to preserve consumer freedom of choice to select parts and service, and for other purposes.

[AI summary unavailable — showing source text] Amends the Clean Air Act ("the Act") to revise warranty provisions. Requires the manufacturer of each new motor vehicle and engine to warrant to the ultimate and each subsequent purchaser that such vehicle or engine is: (1) equipped with emission control components designed to enable such vehicle or engine to conform at the time of sale with applicable regulations under the Act; and (2) free from defects in materials and workmanship which cause such vehicle or engine to fail to conform with applicable regulations for the first two years or the first 24,000 miles, whichever first occurs. Repeals provisions relating to certification of motor vehicle or engine parts by manufacturers or rebuilders. Sets the warranty period for emission control components on new motor vehicles or engines at two years or 24,000 miles, whichever occurs first. Defines "emission control component" to mean only a catalytic converter, thermal reactor, or other component installed on or in a vehicle for the sole purpose of reducing vehicle emissions. Excludes from such term vehicle components which were in general use prior to model year 1968. Deletes requirements that a manufacturers' instructions for mainten…