Data / Federal rules / 2026-04646
Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
The Environmental Protection Agency published this final rule in the Federal Register on March 10, 2026. It took effect on May 11, 2026.
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What the agency says
The U.S. Environmental Protection Agency (EPA) is finalizing new source performance standards (NSPS) and emission guidelines (EG) for the large municipal waste combustion (MWC) source category. This final rule responds to a voluntary remand of the preceding rule for this source category and announces the results of the non-discretionary review at five-year intervals required by Clean Air Act (CAA) section 129(a)(5), fulfilling the requirements of a consent decree for the source category. The final rule revises the remanded emission limits for cadmium, lead, particulate matter, polychlorinated dibenzodioxins and dibenzofurans, mercury, hydrogen chloride, and sulfur dioxide for all sources subject to the NSPS and EG and the remanded emission limits for nitrogen oxides and carbon monoxide for some sources subject to the EG and all sources subject to the NSPS. This final rule also removes certain startup, shutdown, and malfunction (SSM) exclusions and exemptions. In addition, the EPA is taking this opportunity to streamline regulatory language; revise recordkeeping and reporting requirements; establish electronic notification; reestablish new and existing source applicability dates; eliminate title V requirements for air curtain incinerators that burn only wood waste, yard waste, and clean lumber; close a 2007 proposed reconsideration action; and make certain typographical and technical corrections and clarifications. The EPA estimates this final rule will result in 3,269 tpy reduction in regulated pollutants from existing sources through implementation of the final emission limits.
Key facts
- Document number
- 2026-04646
- Type
- Final rule
- Action
- Final rule
- Agency
- Environmental Protection Agency
- Published
- March 10, 2026
- Takes effect
- May 11, 2026
- Dates
- This final rule is effective on May 11, 2026. The incorporation by reference (IBR) of certain publications listed in the rule is approved by the Director of the Federal Register as of May 11, 2026.
- Docket
- EPA-HQ-OAR-2017-0183; FRL-5120-04-OAR
- Regulation ID (RIN)
- 2060-AO18
- Code of Federal Regulations
- 40 CFR 60
- Topics
- Administrative practice and procedure; Air pollution control; Environmental protection; Hazardous substances; Incorporation by reference; Intergovernmental relations; Reporting and recordkeeping requirements
- Significant
- Yes, under Executive Order 12866
- Pages
- 86
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on environmental protection · Published in March 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.