HL IM FAQs

Liquid Integrity Management Rule Frequently Asked Questions.

MR Number Brochure PDF

PHMSA no longer issues R-number Approvals and has transitioned to M-number Approvals that include expiration dates in an effort to accurately locate and verify manufacturing facilities prior to performing safety inspections.

PHMSA Inspection Reassessment Intervals Guidance for Less than 7 Years

Determining reassessment intervals is a vital part of the pipeline integrity management process that has often not received the level of analysis it should to ensure pipeline safety. Defaulting to the maximum reassessment interval allowed by code and not analyzing each unique inspection segment...

Guidance and Criteria For Fireworks Novelty Devices

Transporting Infectious Substances Safely

This brochure describes the USDOT regulations for the classification criteria and packaging requirements for the transportation of infectious substances, 49 CFR, Parts 171-180.

Does your Cylinder Requalification Training by the Visual Inspection Method Meet the Requirements of 49 CFR § 172.704?

Does your Cylinder Requalification Training by the VIsual Inspection Method Meet the Requirements of 49 CFR § 172.704?

Does your Cylinder Requalification Training by the Visual Inspection Method Meet the Requirements of 49 CFR § 172.704?

External visual requalifiers of DOT-approved cylinders are required to undergo function-specific training as specified in 49 CFR § 172.704. This brochure summarizes function specific training required for cylinder requalifiers.

Labeling of Hazardous Chemicals for Bulk Shipments Poster PDF

PHMSA and the Occupational Safety and Health Administration (OSHA) provide clarity on the differing agency labeling requirements to communicate the dangers of hazardous materials in "transportation" (DOT), and in the "workplace" (OSHA).

How to Safely Send Batteries and Battery Powered Devices by Mail

PHMSA and the U.S. Postal Service collaborated on a set of safety guidelines for those wanting to mail lithium batteries. Persons wishing to ship lithium batteries and electronic devices containing lithium batteries should be aware that certain requirements must be met to ensure safety....

FAQ - Mergers Acquisitions and Legal Status Changes PDF

Guidance to industry for changing the company name, a merger, or change in legal structure for EX approvals held by that company.