# Clean Air Act (Act) Approval and Promulgation of State Implementation Plans; Prevention of Significant Deterioration (PSD); Louisiana and New Mexico
> **Rule** · Direct final rule. · Published 1996-10-15 · Effective 1996-12-16 · 61 FR 53639
## Document
- **Document number:** 96-26204
- **Category:** air-emissions
- **Federal Register citation:** 61 FR 53639
- **CFR reference:** 40 CFR 52
- **Publication date:** 1996-10-15
- **Effective date:** 1996-12-16
- **State:** LA
- **EPA docket:** LA-27-1-7166a, NM-30-1-7299a, FRL-5612-7
## Abstract

In this document, EPA is approving revisions to the PSD permitting regulations which were submitted as revisions to the State Implementation Plans (SIP) for Louisiana and New Mexico. The revisions were submitted to address the replacement of the total suspended particulate (TSP) increments, with increments for PM-10 (particulate matter 10 micrometers or less in diameter). The EPA is approving the SIP revisions because they are consistent with the corresponding Federal regulations. The EPA is also removing the TSP area designation tables and revising and/or adding PM-10 area designation tables in 40 CFR part 81 for these States. With the PM-10 increments becoming effective in these areas, the TSP area designations no longer serve any useful purpose relative to PSD.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1996/10/15/96-26204/clean-air-act-act-approval-and-promulgation-of-state-implementation-plans-prevention-of-significant)
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