# Approval and Promulgation of Implementation Plans; Massachusetts
> **Rule** · Direct final rule. · Published 1997-07-14 · Effective 1997-09-12 · 62 FR 37510
## Document
- **Document number:** 97-18408
- **Category:** air-emissions
- **Federal Register citation:** 62 FR 37510
- **CFR reference:** 40 CFR 52
- **Publication date:** 1997-07-14
- **Effective date:** 1997-09-12
- **State:** MA
- **EPA docket:** MA-7197a
## Abstract

The EPA today is approving State Implementation Plan (SIP) revisions submitted by the Commonwealth of Massachusetts. These revisions consist of 1990 base year ozone emission inventories, and establishment of a Photochemical Assessment Monitoring System (PAMS) network. The inventories were submitted by the Commonwealth to satisfy a Clean Air Act (CAA) requirement that States containing ozone nonattainment areas submit inventories of actual ozone precursor emissions in accordance with guidance from the EPA. The ozone emission inventories submitted by the Commonwealth are for the Springfield serious area, and the Massachusetts portion of the Boston-Lawrence- Worcester serious area. The PAMS SIP revision was submitted to satisfy the requirements of the CAA and the PAMS regulations. The intended effect of this action is to approve as a revision to the Massachusetts SIP the state's 1990 base year ozone emission inventories, and to approve the PAMS network into the State's SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/07/14/97-18408/approval-and-promulgation-of-implementation-plans-massachusetts)
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