# Approval and Promulgation of State Plans for Designated Facilities and Pollutants: Massachusetts; 111(d)/129 Revised State Plan for Large Municipal Waste Combustors
> **Rule** · Final rule. · Published 2021-10-29 · Effective 2021-11-29 · 86 FR 59857
## Document
- **Document number:** 2021-23545
- **Category:** air-emissions
- **Federal Register citation:** 86 FR 59857
- **CFR reference:** 40 CFR 62
- **Publication date:** 2021-10-29
- **Effective date:** 2021-11-29
- **State:** MA
- **EPA docket:** EPA-R01-OAR-2021-0265
## Abstract

The Environmental Protection Agency (EPA) is approving the Clean Air Act State Plan revisions for Large Municipal Waste Combustors (MWCs) submitted by the Massachusetts Department of Environmental Protection (MassDEP) on December 18, 2018. The revised State Plan is in response to amended emission guidelines (EGs) for Large MWCs promulgated on May 10, 2006. MassDEP's State Plan is for implementing and enforcing provisions at least as protective as the EGs applicable to existing Large MWCs. This action is being taken under the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/10/29/2021-23545/approval-and-promulgation-of-state-plans-for-designated-facilities-and-pollutants-massachusetts)
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