National Emission Standards for Hazardous Air Pollutants: Cellulose Products Manufacturing Residual Risk and Technology Review

This action finalizes the residual risk and technology review (RTR) conducted for the Miscellaneous Viscose Processes and Cellulose Ether Production source categories regulated under the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Cellulose Products Manufacturing. The EPA is finalizing the proposed determination that the risks from both source categories are acceptable and that the current NESHAP provides an ample margin of safety to protect public health. The EPA identified no new cost-effective controls under the technology review to achieve further emissions reductions. These final amendments address emissions during startup, shutdown, and malfunction (SSM) events; add electronic reporting requirements; add provisions for periodic emissions performance testing for facilities using non-recovery control devices; add a provision allowing more flexibility for monitoring of biofilter control devices; and make technical and editorial changes. Although these amendments are not expected to reduce emissions of hazardous air pollutants (HAP), they will improve monitoring, compliance, and implementation of the rule.