The EPA is approving the St. Regis Mohawk Tribe (SRMT) Tribal Implementation Plan (TIP). The SRMT TIP contains programs to address ambient air quality standards, emissions inventory, permitting, synthetic minor facilities, source surveillance, open burning, enforcement, review of state permits, and regional haze planning. EPA's action makes the approvable portions of the SRMT TIP, as discussed in this action, federally enforceable. The approvable portions of the TIP are equivalent to current EPA regulations, procedures, or ambient air quality standards. The intended effect of the approved TIP is to protect air quality and population within the exterior boundaries of the SRMT Reservation.