NESHAP for Coal- and Oil-fired Electric Utility Steam Generating Units (Final Rule)

The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coal- and Oil-Fired Electric Utility Steam Generating Units (40 CFR Part 63, Subpart UUUUU) apply to each individual or group of two or more new, reconstructed, or existing electric utility steam generating units (EGUs) within a contiguous area and under common control. An EGU is defined as a fossil fuel-fired combustion unit of more than 25 megawatts electric (MWe) that serves a generator that produces electricity for sale, or a fossil fuel-fired unit that cogenerates steam and electricity and supplies more than one-third of its potential electric output capacity and more than 25 MWe output to any utility power distribution system for sale. New facilities include those that commenced construction or reconstruction after the date of proposal. 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 with 40 CFR Part 63, Subpart UUUUU.

The latest form for NESHAP for Coal- and Oil-fired Electric Utility Steam Generating Units (Final Rule) expires 2022-03-31 and can be found here.