Air Plan Approval; Tennessee: Reasonable Measures Required

The U.S. Environmental Protection Agency (EPA) is taking direct final action to approve a State Implementation Plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), on March 25, 1999. The SIP submittal includes a change to the TDEC regulation ``Reasonable Measures Required.'' EPA is proposing to approve this SIP revision because it is consistent with the Clean Air Act (CAA or Act) and federal regulations governing SIPs.