# Testing Regulations for Air Emission Sources
> **Rule** · Final rule. · Published 2018-11-14 · Effective 2019-01-14 · 83 FR 56713
## Document
- **Document number:** 2018-24747
- **Category:** other
- **Federal Register citation:** 83 FR 56713
- **CFR reference:** 40 CFR 51
- **Publication date:** 2018-11-14
- **Effective date:** 2019-01-14
- **EPA docket:** EPA-HQ-OAR-2016-0510
## Abstract

This action amends certain existing testing regulations to reflect corrections, updates, and the addition of alternative equipment and methods for source testing of emissions. These revisions will improve the quality of data and provide flexibility in the use of approved alternative procedures. The revisions do not impose any new substantive requirements on source owners or operators.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/11/14/2018-24747/testing-regulations-for-air-emission-sources)
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