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The Office of Hazardous Materials Enforcement has issued a variety of manuals and policy statements to explain how it implements the enforcement program.

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Memoranda of Understanding (MOU)

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Letters of Interpretation are issued to individuals, companies, or trade associations responding to requests for clarification of the HRM. They are straight forward explanations of the regulation text and do not impose new requirements or obligations.

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The Risk Management online tools are intended to help the regulated community identify and assess risks using generally accepted risk management principles and practices. A specific feedback page also allows comments, questions, and recommendations.

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PHMSA produces and distributes the Emergency Response Guidebook (ERG) for use by firefighters, police, and other emergency services personnel who may be the first to arrive at the scene of a transportation incident involving a hazardous material. It is primarily a guide to aid first responders in quickly identifying the specific or generic classification of materials involved in an indicent and protecting themselves and the general public during the initial response phase of an incident. The ERG is updated every three to four years to accommodate new products and technology. Part of the update process includes soliciting feedback from stakeholders through a Federal Register notice concerning the necessary updates.