NESHAP for Hydrochloric Acid Production (40 CFR Part 63, Subpart NNNNN) (Final Rule)

The National Emission Standards for Hazardous Air Pollutants (NESHAP), for Hydrochloric Acid Production (40 CFR Part 63, Subpart NNNNN) were proposed on September 18, 2001, promulgated on April 17, 2003, and amended on April 7, 2006. These regulations apply to existing and new hydrochloric acid (HCI) production facilities. New facilities include those that commenced construction or reconstruction after the date of proposal. This information is being collected to assure compliance with 40 CFR Part 63, Subpart NNNNN. In general, all NESHAP standards require initial notifications, performance tests, and periodic reports by the owners/operators of the affected facilities. They are also required to maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an affected facility, or any period during which the monitoring system is inoperative. These notifications, reports, and records are essential in determining compliance, and are required of all affected facilities subject to NESHAP.

The latest form for NESHAP for Hydrochloric Acid Production (40 CFR Part 63, Subpart NNNNN) (Final Rule) expires 2023-03-31 and can be found here.