# Air Plan Approval; Massachusetts; Air Emissions Inventory, Emissions Statements, Source Registration, and Emergency Episode Planning Provisions
> **Rule** · Final rule. · Published 2019-03-04 · Effective 2019-04-03 · 84 FR 7299
## Document
- **Document number:** 2019-03444
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 7299
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-03-04
- **Effective date:** 2019-04-03
- **State:** MA
- **EPA docket:** EPA-R01-OAR-2018-0771
## Abstract

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the Commonwealth of Massachusetts. The revisions establish a 2011 base year emissions inventory, an emissions statement certification, revisions to an existing stationary source registration program, and requirements to be undertaken during air pollution emergencies. These SIP revisions were submitted to meet Clean Air Act requirements with respect to EPA's 1997 ozone, 2008 ozone, and 2010 SO<INF>2</INF> National Ambient Air Quality Standards. This action is being taken under the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/03/04/2019-03444/air-plan-approval-massachusetts-air-emissions-inventory-emissions-statements-source-registration-and)
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