Search

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

Compliance Archives

Lion - Quotes

Given the choice, I would do all coursework this way. In-person courses go very fast without the opportunity to pause or repeat anything.

Ellen Pelton

Chemical Laboratory Manager

My experience with Lion training, both online and in the classroom, is that they are far better organized and provide a better sequential explanation of the material.

Robert Roose

Manager, Dangerous Goods Transportation

I really enjoyed this training. Even after years on both sides of the comprehension coin, I find myself still learning! The quality of the delivery exceeded much of the training I have received in the past.

Neil Ozonur

Safety Officer

More thorough than a class I attended last year through another company.

Troy Yonkers

HSES Representative

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

Barry Cook

Hazmat Shipping Professional

The exercises in the DOT hazardous materials management course are especially helpful in evaluating your understanding of course information.

Morgan Bliss

Principal Industrial Hygienist

The instructor was very engaging and helped less experienced people understand the concepts.

Steve Gall

Safety Leader

One of the best trainings I have ever received!

Brandon Morfin

EH&S Manager

Lion's information is very thorough and accurate. Presenter was very good.

Melissa Little

Regulatory Manager

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

Download Our Latest Whitepaper

This report details major changes for hazardous waste generators from US EPA’s Generator Improvements Rule, as well as the latest updates from states that are still working to adopt new, stricter Federal requirements.

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.