The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of Connecticut on December 1, 2004. Specifically, EPA is approving revisions to Connecticut's visible and particulate matter (PM) emissions, recordkeeping and monitoring regulations. These revised rules establish and require limitations on visible and PM emissions for stationary sources, and clarify reporting requirements for operation of air-pollution-control and monitoring equipment. EPA is approving this SIP revision because EPA has determined that it will not interfere with attainment or maintenance of the national ambient air quality standards (NAAQS) in Connecticut or with any other applicable requirements of the Clean Air Act (CAA). This action is being taken in accordance with the CAA.