March 12, 2020 - EPA evaluated the risks remaining after fully implementing the 2003 National Emission Standards for Hazardous Air Pollutants (NESHAP) for Hydrochloric Acid Production and determined that risks from this source category are acceptable. In addition, the agency identified no developments in practices, processes or control technologies that would further reduce emissions of air toxics. EPA is not making significant changes to the original NESHAP for this source category and has determined the standards continue to provide an ample margin of safety to protect public health and the environment.
EPA is finalizing only minor amendments to the existing regulation. These amendments include a requirement for electronic reporting of performance test results and revisions of the requirements for periods of startup, shutdown and malfunction to clarify that standards apply at all times to be consistent with a 2008 court decision and includes the addition of a work practice requirement for planned periods of vent maintenance.
For more information on the rule, visit the regulation page for Hydrochloric Acid Production: National Emission Standards for Hazardous Air Pollutants (NESHAP).You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.