NSPS for Industrial-Commercial-Institutional Steam Generating Units (40 CFR Part 60, Subpart Db) (Renewal)

The New Source Performance Standards for Industrial/Commercial/Institutional Steam Generating Units (40 CFR Part 60, Subpart Db) apply to existing and new industrial/commercial/institutional steam generating units (boilers) that have a heat input capacity from fuels combusted in the unit of greater than 29 megawatts (MW) (100 million British thermal units per hour (MMBtu/hr)). In general, all NSPS 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 NSPS.

The latest form for NSPS for Industrial-Commercial-Institutional Steam Generating Units (40 CFR Part 60, Subpart Db) (Renewal) expires 2027-08-31 and can be found here.