# Performance Specification 18-Performance Specifications and Test Procedures for Hydrogen Chloride Continuous Emission Monitoring Systems at Stationary Sources
> **Rule** · — · Published 2015-07-17 · 80 FR 42397
## Document
- **Document number:** C1-2015-16385
- **Category:** other
- **Federal Register citation:** 80 FR 42397
- **CFR reference:** 40 CFR 60
- **Publication date:** 2015-07-17
- **EPA docket:** EPA-HQ-OAR-2013-0696
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/07/17/C1-2015-16385/performance-specification-18-performance-specifications-and-test-procedures-for-hydrogen-chloride)
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