# Revisions to Testing Regulations for Air Emission Sources
> **Rule** · — · Published 2018-11-20 · 83 FR 58506
## Document
- **Document number:** C1-2018-24747
- **Category:** other
- **Federal Register citation:** 83 FR 58506
- **CFR reference:** 40 CFR 51
- **Publication date:** 2018-11-20
- **EPA docket:** EPA-HQ-OAR-2016-0510
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/11/20/C1-2018-24747/revisions-to-testing-regulations-for-air-emission-sources)
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