# Pipeline Safety: Standards Update-ASTM F1055
> **Pipeline and Hazardous Materials Safety Administration** · Direct final rule (DFR); request for comments. · Published 2026-04-24 · Effective 2027-01-01 · 91 FR 21997
## Document
- **Document number:** 2026-08049
- **Category:** pipeline-safety
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 91 FR 21997
- **CFR reference:** 49 CFR 192
- **Publication date:** 2026-04-24
- **Effective date:** 2027-01-01
- **DOT docket:** Docket No. PHMSA-2026-1531
## Abstract

This DFR amends PHMSA's regulations to incorporate by reference an updated edition of industry standard ASTM F1055, Standard Specification for Electrofusion Type Polyethylene Fittings for Outside Diameter Controlled Polyethylene and Crosslinked Polyethylene (PEX) Pipe and Tubing. This updated standard will maintain or improve public safety, prevent regulatory confusion, reduce compliance burdens on stakeholders, and satisfy a mandate in the National Technology Transfer and Advancement Act (NTTAA) of 1995.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/04/24/2026-08049/pipeline-safety-standards-update-astm-f1055)
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