anchor: The rule provides the main regulatory framework for the National Low Emission Vehicle program and creates the means whereby automobile and light-duty truck manufacturers can volunteer to comply with tailpipe standards that are more strict than EPA can mandate at this time.
positive: Automobile and light-duty truck manufacturers can volunteer to comply with tailpipe standards that are more strict than EPA can mandate at this time.
negative: Automobile and light-duty truck manufacturers are required to comply with strict tailpipe standards.