# Technical Amendments to Procedure 6
> **Rule** · Final rule. · Published 2017-09-21 · Effective 2017-10-23 · 82 FR 44106
## Document
- **Document number:** 2017-20172
- **Category:** other
- **Federal Register citation:** 82 FR 44106
- **CFR reference:** 40 CFR 60
- **Publication date:** 2017-09-21
- **Effective date:** 2017-10-23
- **EPA docket:** EPA-HQ-OAR-2013-0696
## Abstract

The Environmental Protection Agency (EPA) is finalizing minor technical amendments to Procedure 6 that were proposed in the Federal Register on May 19, 2016. Procedure 6 includes quality assurance (QA) procedures for hydrogen chloride (HCl) continuous emission monitoring systems (CEMS) used for compliance determination at stationary sources. The QA procedures specify the minimum requirements necessary for the control and assessment of the quality of CEMS data submitted to the EPA. This action establishes consistent requirements for ensuring and assessing the quality of HCl data measured by CEMS that meet initial acceptance requirements in Performance Specification (PS) 18 of appendix B to part 60.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/21/2017-20172/technical-amendments-to-procedure-6)
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