NSPS for Municipal Solid Waste Landfills (40 CFR part 60, subpart WWW) (Renewal)

The New Source Performance Standards (NSPS) for Municipal Solid Waste (MSW) apply to MSW landfills for which construction, modification, or reconstruction commences either on or after May 30, 1991. A MSW landfill is an entire disposal facility in a contiguous geographical space where household waste is placed in or on. An MSW landfill may also receive other types of RCRA Subtitle D wastes (257.2 of this title) such as commercial solid waste, nonhazardous sludge, conditionally exempt small quantity generator waste, and industrial solid waste. Portions of an MSW landfill may be separated by access roads. An MSW landfill may be publicly or privately owned, and may be a new landfill, an existing landfill, or a lateral expansion. On August 29, 2016 (81 FR 59332), EPA finalized a new NSPS subpart (40 CFR part 60, subpart XXX) based on its review of subpart WWW. Concurrently, EPA finalized revised Emissions Guidelines under a new subpart (40 CFR part 60, subpart Cf). The new Emission Guidelines apply to existing landfills accepting waste after 1987 for which construction was commenced either on or before July 17, 2014. Subpart XXX applies to MSW landfills that are new, reconstructed, or modified after July 17, 2014. The requirements in Subpart WWW mimic most of the requirements in these new rules, except for that the control threshold in new rules require controls at additional landfills beyond what Subpart WWW requires. 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 with 40 CFR Part 60, Subpart WWW.

The latest form for NSPS for Municipal Solid Waste Landfills (40 CFR part 60, subpart WWW) (Renewal) expires 2022-03-31 and can be found here.