Data / Federal rules / 2024-14632

Approval and Promulgation of Air Quality Implementation Plans; Massachusetts; Regional Haze State Implementation Plan for the Second Implementation Period

The Environmental Protection Agency published this final rule in the Federal Register on July 8, 2024. It took effect on August 7, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is approving the regional haze State Implementation Plan (SIP) revision submitted by Massachusetts on July 22, 2021, and supplemented on June 15, 2022, as satisfying applicable requirements under the Clean Air Act (CAA) and EPA's Regional Haze Rule for the program's second implementation period. Massachusetts' SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. The EPA is taking this action pursuant to sections 110 and 169A of the Clean Air Act.

Key facts

Document number: 2024-14632
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: July 8, 2024
Takes effect: August 7, 2024
Dates: This rule is effective on August 7, 2024.
Docket: EPA-R01-OAR-2023-0185; FRL-11616-02-R1
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
Pages: 5

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on carbon monoxide · Rules on environmental protection · Published in July 2024

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.