National Emission Standards for Hazardous Air Pollutants: Generic Maximum Achievable Control Technology Standards; and Manufacture of Amino/Phenolic Resins

This action finalizes the residual risk and technology review (RTR) conducted for the Acrylic and Modacrylic Fibers Production, Amino/Phenolic Resins Production and Polycarbonate Production source categories regulated under national emission standards for hazardous air pollutants (NESHAP). In addition, we are taking final action addressing emissions during periods of startup, shutdown and malfunction, and are adding standards for previously unregulated hazardous air pollutant (HAP) emissions sources for certain emission points. These changes include revisions made in response to comments received on the proposed rule. These final amendments also include clarifying provisions pertaining to open-ended valves and lines, adding monitoring requirements for pressure relief devices and adding requirements for electronic reporting of performance test results, as proposed. We estimate that these final amendments will reduce HAP emissions from these three source categories by a combined 137 tons per year.