Hazardous Materials Approvals and Permits Overview

PHMSA's Approvals and Permits Division is responsible for the issuance of DOT Special Permits and Approvals. A Special Permit sets forth alternative requirements, or variances, to the requirements in the HMR. Federal hazardous materials transportation law...

Approval & Permits Procedures & Policies

The materials contained in these documents consist of guidance and other information for PHMSA's Office of Hazardous Materials Safety (OHMS) and its supporting program offices. This document is issued exclusively for the internal management of PHMSA and the guidance of its officers and...

Explosive Program Reform Memo

Special Permits Program Desk Guide

Approvals Program Desk Guide

1986 Memorandum of Understanding Between USCG and RSPA on Waterfront LNG

PHMSA Inter-Agency Memoranda of Understanding

A Memorandum of Understanding (MOU) is a written agreement that clarifies responsibilities between two or more organizations that share services, clients, or other common associations. An MOU creates a clear understanding of each party's purpose and of their commitments. The document will set...

UGI Utilities Pipeline Leak in Allentown, PA

The Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) supported the Pennsylvania Public Utilities Commission (PA PUC) during its investigation of this devastating pipeline incident.

PHMSA holds all pipeline operators accountable for remaining...

Checklist - State Damage Prevention Law Enforcement Program Evaluation

PERI-Letter from the Administrator