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What is Hydrogen Sulfide or H2S?

12/23/2025

What is Hydrogen Sulfide or H2S?

What is H2S? Hydrogen sulfide (H2S) is a colorless flammable gas that is toxic at extremely low concentrations and poses a potentially lethal hazard to workers in several industry sectors.
How Many Hazard Classes Are There?

12/15/2025

How Many Hazard Classes Are There?

Understanding how and why hazardous materials/dangerous goods are categorized into "classes" and "divisions" for transportation is fundamental to compliance with US and international shipping regulations.
Best of 2025: Top 3 Videos of the Year

12/15/2025

Best of 2025: Top 3 Videos of the Year

Thank you to everyone who visited our YouTube page this year, shared these videos with colleagues on social media, or checked out a video here on Lion.com. 
Best of 2025: EHS Guides and Cheat Sheets

12/15/2025

Best of 2025: EHS Guides and Cheat Sheets

Lion most popular whitepapers/guides and "cheat sheets" of 2025.
PHMSA Shares Hazmat Enforcement Priorities for 2026

12/12/2025

PHMSA Shares Hazmat Enforcement Priorities for 2026

Get familiar with PHMSA's priorities for inspecting hazmat shippers' facilities and enforcing the Hazardous Materials Regulations, including more scrutiny on lithium battery shipments. 
2026 Hazmat and RCRA Training Schedules Out Now

12/11/2025

2026 Hazmat and RCRA Training Schedules Out Now

See Lion's 2026 schedule of workshops and webinars to find out when expert-led hazardous materials and RCRA training will be in your area next year or find a webinar that fits your schedule.
2026 Lithium Battery State of Charge Cheat Sheet

12/11/2025

2026 Lithium Battery State of Charge Cheat Sheet

The current recommended limits on state of charge for lithium batteries during transport aboard aircraft will become mandatory requirements as of January 1, 2026.
e-Manifest Reports Must Be Submitted Online as of 12/1

12/10/2025

e-Manifest Reports Must Be Submitted Online as of 12/1

As of December 1, 2025, electronic submission of certain hazardous waste Manifest-related reports, and export manifests, is now mandatory. 
Addendum I to the 2026 IATA DGR Released

12/5/2025

Addendum I to the 2026 IATA DGR Released

IATA has released the first Addendum to the 67th Edition of its Dangerous Goods Regulations (2026). Mandatory compliance with the new edition begins on January 1.
TSCA Activity Tracker (2025–26)

12/5/2025

TSCA Activity Tracker (2025–26)

Tracking TSCA-mandated chemical risk evaluations and new prohibitions, restrictions, and management standards for chemical manufacturers, distributors, and users.

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Lion - Quotes

Attending Lion Technology classes should be mandatory for every facility that ships or stores hazmat.

Genell Drake

Outbound Lead

This is the best RCRA training I've experienced! I will be visiting Lion training again.

Cynthia L. Logsdon

Principal Environmental Engineer

Lion does a great job summarizing and communicating complicated EH&S-related regulations.

Michele Irmen

Sr. Environmental Engineer

I really enjoy your workshops. Thank you for such a great program and all the help Lion has provided me over the years!

George Chatman

Hazardous Material Pharmacy Technician

The course was very informative and presented in a way that was easily understood and remembered. I would recommend this course.

Jeffrey Tierno

Hazmat Shipping Professional

I love that the instructor emphasized the thought process behind the regs.

Rebecca Saxena

Corporate Product Stewardship Specialist

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

Very witty instructor, made the long times sitting bearable. One of the few training courses I can say I actually enjoyed.

John Hutchinson

Senior EHS Engineer

The training was impressive. I am not a fan of online training but this was put together very well. I would recommend Lion to others.

Donnie James

Quality Manager

The instructor was very knowledgeable and provided pertinent information above and beyond the questions that were asked.

Johnny Barton

Logistics Coordinator

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A guide to developing standard operating procedures, or SOPs, that help you select, manage, and audit your hazmat agents and contractors.

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