Video: Hazmat Packing Groups Explained

Posted on 8/11/2025 by Lion Technology Inc.

Some hazardous materials are more hazardous than others. Most of the nine hazard classes and divisions use Packing Groups (PG) to distinguish severity of hazard.

This video addresses the classes and divisions that use PG "groupings" - PG I, PG II, and PG III - to identify levels of danger within the same class or division.

Hazmat Ground Shipper Training

Learn all the DOT’s rules for classifying, packaging, marking, labeling, and documenting your hazmat shipments in full compliance with the Hazardous Materials Regulations at Lion’s Hazmat Ground Shipper Certification (DOT) Workshop.

Or browse all Lion’s hazmat shipper training at Lion.com/Hazmat.

Find a Post

Search for:

Compliance Topics

Compliance Archives

The instructor was very patient and engaging - willing to answer and help explain subject matter.

Misty Filipp

Material Control Superintendent

Well designed and thorough program. Excellent summary of requirements with references. Inclusion of regulations in hard copy form, as well as full electronic with state pertinent regulations included is a great bonus!

Oscar Fisher

EHS Manager

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

Sarah Baker

Planner

Lion is at the top of the industry in compliance training. Course content and structure are updated frequently to make annual re-training enjoyable. I like that Lion has experts that I can contact for 1 year after the training.

Caroline Froning

Plant Chemist

Convenient; I can train when I want, where I want.

Barry Cook

Hazmat Shipping Professional

I have attended other training providers, but Lion is best. Lion is king of the hazmat jungle!!!

Henry Watkins

Hazardous Waste Technician

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

Ed Grzybowski

EHS & Facility Engineer

My experience with Lion classes has always been good. Lion Technology always covers the EPA requirements I must follow.

Steven Erlandson

Environmental Coordinator

The instructor was very very informative, helpful, understandable and pleasant. This course answered many questions I had, being new to this industry.

Frances Mona

Shipping Manager

I like the consistency of Lion workshops. The materials are well put together and instructors are top notch!

Kevin Pylka

Permitting, Compliance & Environmental Manager

Download Our Latest Whitepaper

Four key considerations to help you maximize the convenience and quality of your experience with online training.

Download

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.