EPA is taking direct final action to approve State Implementation Plan (SIP) revisions submitted by the State of Connecticut on February 7, 1996 and February 18, 1999, committing that the State will accept compliance with the National Low Emission Vehicle (National LEV) program requirements as a compliance option for new motor vehicles sold in the State, which had also adopted the California Low Emission Vehicle (CAL LEV) program. Auto manufacturers have agreed to sell cleaner vehicles meeting the National LEV standards throughout these States for the duration of the manufacturers' commitments to the National LEV program. This SIP revision is required as part of the agreement between States and automobile manufacturers to ensure the continuation of the National LEV program to supply clean cars throughout most of the country, beginning with 1999 model year vehicles in Northeastern States and extending to other States beginning with 2001 model year vehicles.