# Hazardous Materials: Adoption of Miscellaneous Petitions To Reduce Regulatory Burdens
> **Pipeline and Hazardous Materials Safety Administration** · Final rule. · Published 2020-11-25 · Effective 2020-12-28 · 85 FR 75680
## Document
- **Document number:** 2020-23712
- **Category:** pipeline-safety
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 85 FR 75680
- **CFR reference:** 49 CFR 107
- **Publication date:** 2020-11-25
- **Effective date:** 2020-12-28
- **DOT docket:** Docket No. PHMSA-2017-0120 (HM-219C)
## Abstract

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the Hazardous Materials Regulations in response to 24 petitions for rulemaking submitted by the regulated community between February 2015 and March 2018. This final rule updates, clarifies, or provides relief from various regulatory requirements without adversely affecting safety. PHMSA also, as of the effective date of this final rule, withdraws its September 28, 2017 enforcement discretion regarding the phase-out of mobile refrigeration systems.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/11/25/2020-23712/hazardous-materials-adoption-of-miscellaneous-petitions-to-reduce-regulatory-burdens)
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