For how many years are emission-related parts required by federal law to be covered by warranty?

Emission-related parts are required by federal law to be covered by warranty for a minimum of two years. This is in line with the Clean Air Act, which mandates that vehicle manufacturers must provide warranty coverage for certain parts that could impact emissions. This requirement helps ensure that vehicles comply with environmental regulations, promoting public health by limiting air pollution from motor vehicles. The two-year warranty period is designed to provide consumers with assurance that the vehicle's emissions systems will function correctly and meet regulatory standards during the early years of the vehicle's operation, which is critical for maintaining air quality and reducing greenhouse gas emissions.