# Hazardous Materials: Removal of Electronically Controlled Pneumatic Brake System Requirements for High Hazard Flammable Unit Trains
> **Federal Railroad Administration** · Final rule. · Published 2018-09-25 · Effective 2018-09-25 · 83 FR 48393
## Document
- **Document number:** 2018-20647
- **Category:** railroad-safety
- **Sub-agency:** Federal Railroad Administration
- **Federal Register citation:** 83 FR 48393
- **CFR reference:** 49 CFR 174
- **Publication date:** 2018-09-25
- **Effective date:** 2018-09-25
- **DOT docket:** Docket No. PHMSA-2017-0102 (HM-251F)
## Abstract

The Pipeline and Hazardous Materials Safety Administration, in coordination with the Federal Railroad Administration, is issuing this final rule to remove requirements pertaining to electronically controlled pneumatic brake systems on high-hazard flammable unit trains. This final action is based on the Department of Transportation's determination that the requirements are not economically justified.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/09/25/2018-20647/hazardous-materials-removal-of-electronically-controlled-pneumatic-brake-system-requirements-for)
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