NESHAP for Stationary Reciprocating Internal Combustion Engines (40 CFR part 63, subpart ZZZZ) (Final Rule)

The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Stationary Reciprocating Internal Combustion Engines (40 CFR Part 63, Subpart ZZZZ) were proposed on December 19, 2002: promulgated on June 15, 2004; and revised on: June 26, 2006; January 18, 2008; January 30, 2013; and February 27, 2014. These regulations apply to owners and operators of a stationary reciprocating internal combustion engines (RICE) at either a major or area source of hazardous air pollutant (HAP) emissions, except if the stationary RICE is being tested at a stationary RICE test cell/stand. A stationary RICE is any internal combustion engine which uses reciprocating motion to convert heat energy into mechanical work and which is not mobile. New facilities include those that commenced construction, modification or reconstruction after the date of proposal. This information is being collected to assure compliance with 40 CFR Part 63, Subpart ZZZZ.

The latest form for NESHAP for Stationary Reciprocating Internal Combustion Engines (40 CFR part 63, subpart ZZZZ) (Final Rule) expires 2026-04-30 and can be found here.