Municipal Solid Waste Landfills: New Source Performance Standards (NSPS), Emission Guidelines (EG) and Compliance Times
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In 2016, EPA announced final updates to its New Source Performance Standards (NSPS) to reduce emissions of methane-rich landfill gas from new, modified and reconstructed municipal solid waste (MSW) landfills. In a separate action, EPA also issued guidelines for reducing emissions from existing MSW landfills.
In 2017, EPA announced the agency is reconsidering certain aspects of the 2016 final rules for MSW NSPS and Emission Guidelines (EG). The EPA still intends to complete the reconsideration process granted by the Administrator.
In August 2019, EPA issued two actions related to timing and implementation of the 2016 emission guidelines for existing MSW landfills. One was a final rule to align state plan timing requirements with the updated Clean Air Act section 111(d) implementing regulations that were finalized with the Affordable Clean Energy rule on July 8, 2019. The other was a proposed federal plan in response to a court order for EPA to finalize a federal plan by November 6, 2019. That court order has since been stayed pending an appeal.
In February 2020, EPA amended the NSPS and EG to allow landfills subject to the NESHAP to opt-in to certain compliance provisions.
In March 2020, EPA issued a notice of finding of failure to submit state plans, identifying 42 states and territories that failed to submit for review and approval state plans to implement the 2016 EG for MSW Landfills. This finding does not establish sanctions for states that have failed to submit state plans or set deadlines for imposing sanctions.
5/10/2021 - Final Rule: Federal Plan Requirements for Municipal Solid Waste Landfills (pre-publication version)
8/26/2019 - Final Rule: Adopting Subpart Ba Requirements in Emission Guidelines for Municipal Solid Waste Landfills (84 FR 44547)
8/22/2019 - Proposed Federal Plan (84 FR 43745)
10/30/2018 - Proposed Rule: Adopting Subpart Ba Requirements in Emission Guidelines for Municipal Solid Waste Landfills (83 FR 54527)
05/22/2017 – Notice: 90-Day Stay of Final Standards of Performance for Municipal Solid Waste Landfills and Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills (82 FR 24878)
05/05/2017 – Letter granting reconsideration of certain aspects of the 2016 NSPS and stay of effective date for both NSPS and Emission Guidelines
08/29/2016 – Final Rule (New Source Performance Standards - 81 FR 59332)
08/29/2016 – Final Rule (Emission Guidelines - 81 FR 59276)
08/27/2015 – Supplemental Proposal (New Source Performance Standards - 80 FR 52162)
08/27/2015 – Proposed Rule (Emission Guidelines - 80 FR 52100)
07/17/2014 – Proposed Rule (79 FR 41771)
09/08/2006 – Proposed Rule; amendments (71 FR 53272)
05/23/2002 – Proposed Rule (67 FR 36476)
10/17/2000 – Final Rule; testing amendments (65 FR 61744)
04/10/2000 – Final Rule; technical corrections (65 FR 18906)
11/08/1999 – Final Rule (64 FR 60689)
02/24/1999 – Final Rule; technical amendments and corrections (64 FR 9258)
12/16/1998 – Proposed Rule (63 FR 69363)
06/16/1998 – Direct Final Rule (63 FR 32743)
11/13/1997 – Proposed Settlement; Municipal Solid Waste Landfills NSPS and EG Litigation (62 FR 60898)
03/12/1996 – Final Rule (61 FR 9905)
06/21/1993 – Supplemental Notice (58 FR 33790)
05/30/1991 – Proposed Rule (56 FR 24468)
EPA hosted two virtual half-day sessions on January 26th and 28th, 2021 to explore recent air emissions measurement and monitoring developments from municipal solid waste (MSW) landfills.
Regulatory Impact Analysis for the Proposed Revisions to the Emission Guidelines for Existing Sources and Supplemental Proposed New Source Performance Standards in the Municipal Solid Waste Landfills Sector (For the 2016 Rule)
Regulatory Impact Analysis for the Final Revisions to the Emission Guidelines for Existing Sources and The New Source Performance Standards in the Municipal Solid Waste Landfills Sector (For the 2016 Rule)
Responses to Public Comments on EPA’s Standards of Performance for Municipal Solid Waste Landfills and Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills: Proposed Rules - July 2016
Air Emissions From Municipal Solid Waste Landfills - Background Information for Proposed Standards and Guidelines (For the 1991 Proposed Rule)
View the supporting documents in the docket folder to find additional related documents to the new source performance standards.
View the supporting documents in the docket folder to find additional related documents to the emission guidelines and compliance times.
Applicability Determination Index (ADI). The ADI is maintained by EPA's Office of Enforcement and Compliance Assurance (OECA) and provides a data base of memoranda dealing with applicability issues. The database is
searchable by Subpart.