# Pipeline Safety: Rationalize Calculation of Regulatory Filing and Compliance Deadlines
> **Pipeline and Hazardous Materials Safety Administration** · Direct final rule (DFR); confirmation of effective date. · Published 2025-10-02 · Effective 2025-07-01 · 90 FR 47620
## Document
- **Document number:** 2025-19326
- **Category:** pipeline-safety
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 90 FR 47620
- **CFR reference:** 49 CFR 190
- **Publication date:** 2025-10-02
- **Effective date:** 2025-07-01
- **DOT docket:** Docket No. PHMSA-2025-0106
## Abstract

PHMSA is confirming the effective date for the DFR that appeared in the Federal Register on July 1, 2025. The DFR amended PHMSA's procedural regulations to establish a rule of construction clarifying the operation of procedural filing deadlines scheduled to fall on weekends and Federal holidays.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/10/02/2025-19326/pipeline-safety-rationalize-calculation-of-regulatory-filing-and-compliance-deadlines)
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