Final Rule: Hazmat Regs Aligned with International Standards

Posted on 4/11/2024 by Lion Technology Inc.

US DOT PHMSA published a Final Rule on April 10 to align ("harmonize") the Hazardous Materials Regulations (HMR) more closely with international standards, including the 2023–24 ICAO Technical Instructions, the 2022 IMDG Code, and the 22nd revised UN Model Regulations. The rule takes effect on May 10, 2024.

The rule harmonizes the HMR with global requirements including the 2023–24 ICAO Technical Instructions, the 2022 IMDG Code, and the 22nd revised UN Model Regulations.

View the full Final Rule in the April 10, 2024 Federal Register.

Lion Members: Get more details on the Rule in the Member Area.

The HM-215Q Final Rule:

  • Adds to and revises the Hazardous Materials Table (172.101).
  • Modifies several hazmat special provisions in 172.102.
  • Updates the 49 CFR rules for shipping lithium cells and batteries.
  • Allows continued use of new provisions for polymerizing substances.
  • Clarifies the classification rules for Class 8 corrosives with more than one packing group.
  • Adds a new entry to the Self-Reactive Materials Table (173.224).
  • Updates references related to protecting valves on gas cylinders during transportation.
  • Revises 49 CFR 173.167, “ID8000 consumer commodities.”
In the Final Rule, PHMSA also addresses many public comments and requests for clarification submitted in response to the Notice of Proposed Rulemaking (NPRM) published in May 2023.

Hazmat Shipper Training in Cincinnati

Develop a step-by-step process to identify and apply the US and international regulations that apply to hazmat shipments offered for transportation by ground or air.

DOT Hazmat Ground Shipper Certification
April 24—25, 2024

IATA Hazmat Air Shipper Certification
April 26, 2024

Find a Post

Compliance Archives

Lion - Quotes

I can't say enough how pleased I was with this course! Everything finally makes sense.

Kim Graham

Lab Manager

The instructor made the class very enjoyable and catered to the needs of our group.

Sarah Baker


Lion is easily and consistently the best option for compliance training. I've learned new information from every instructor I've had.

Rachel Mathis

EHS Specialist

These are the best commercial course references I have seen (10+ years). Great job!

Ed Grzybowski

EHS & Facility Engineer

As always, Lion never disappoints

Paul Resley

Environmental Coordinator

The instructor clearly enjoys his job and transmits that enthusiasm. He made a dry subject very interesting and fun.

Teresa Arellanes

EHS Manager

The instructor was excellent. They knew all of the material without having to read from a notepad or computer.

Gary Hartzell

Warehouse Supervisor

Lion's course was superior to others I have taken in the past. Very clear in the presentation and the examples helped to explain the content presented.

George Bersik

Hazardous Waste Professional

I have over 26 years of environmental compliance experience, and it has been some time since I have attended an environmental regulations workshop. I attended this course as preparation for EHS Audits for my six plants, and it was exactly what I was looking for.

Frank Sizemore

Director of Regulatory Affairs

The instructor's energy, enthusiasm, and knowledge of the subject make the class a great learning experience!

Brian Martinez

Warehouse Operator

Download Our Latest Whitepaper

Look beyond the annual "Top 10 List" to see specifics about the most cited OSHA health & safety Standards and the individual regulations that tripped up employers the most last year. 

Latest Whitepaper

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.