National Emission Standards for Hazardous Air Pollutants: Engine Test Cells/Stands Residual Risk and Technology Review
This action finalizes the residual risk and technology review (RTR) conducted for the Engine Test Cells/Stands source category regulated under national emission standards for hazardous air pollutants (NESHAP). In addition, we are taking final action on amendments to the Engine Test Cells/Stands NESHAP addressing periods of startup, shutdown, and malfunction (SSM). These final amendments also include provisions regarding electronic reporting, as well as clarifying and technical corrections. These final amendments will result in improved compliance and implementation of the rule.