# Preparation, Adoption, and Submittal of State Implementation Plans; Appendix M, Test Methods 204, 204A-204F
> **Rule** · Final rule. · Published 1997-06-16 · Effective 1997-06-16 · 62 FR 32500
## Document
- **Document number:** 97-15374
- **Category:** air-emissions
- **Federal Register citation:** 62 FR 32500
- **CFR reference:** 40 CFR 51
- **Publication date:** 1997-06-16
- **Effective date:** 1997-06-16
- **EPA docket:** FRL-5836-1
## Abstract

This rule adds seven methods to Appendix M of 40 CFR Part 51 for capture efficiency (CE) testing to assist States in adopting enforceable CE measurement protocols into their State implementation plans (SIP's) for ozone. These final methods, in conjunction with the protocols, would also improve EPA's ability to enforce State regulations to reduce volatile organic compounds (VOC) emissions in ozone nonattainment areas.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/06/16/97-15374/preparation-adoption-and-submittal-of-state-implementation-plans-appendix-m-test-methods-204)
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