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Regulation 310 CMR 7.00: Air Pollution Control

These regulations establish emission limits, pollution control standards, and permit requirements for a range of facilities and activities. MassDEP implements these rules to prevent and control air pollution where it originates. This ensures abundant clean air for Massachusetts residents, workers, and visitors.

Table of Contents

Current Regulations

These regulations were last amended in December 2020 (Prohibition on Certain Hydrofluorocarbons, Reducing Methane from Natural Gas Distribution emergency regulations). MassDEP & the Executive Office of Energy & Environmental Affairs have emergency regulations and proposed amendments out for public comment.

310 CMR 7.00: Air Pollution Control

Note: This is an unofficial version of Commonwealth regulations and is posted here for the convenience of the public. It is not an official statement of the regulations.

Proposed Amendments & Public Comment

December 2020

September 2020

Recently Promulgated Amendments