Hazmat compliance guides
Free, practical resources on 49 CFR shipping requirements. Written for logistics managers, shipping coordinators, and compliance officers who actually handle hazmat freight.
Compliance
Hazard classes: all 9 DOT classes explained
A plain-language hazardous materials classification chart covering all nine DOT hazard classes, their divisions, common examples, and placard appearance.
Hazmat placard requirements: the 454 kg rule, who supplies them, driver vs shipper
Hazmat placard requirements explained: when the 454 kg (1,001 lb) aggregate rule triggers, who is responsible for supplying placards, and the line between driver and shipper duties.
Hazmat training requirements for shippers (49 CFR 172.704)
Hazmat training requirements for shipper employees under 49 CFR 172.704: the 3-year recertification clock, four required training functions, and $84,000-per-day fine exposure.
Hazmat compliance FAQ: 15 answers for shippers
Straight answers to common hazmat shipping questions, from classification and LTL to shipping papers, placards, training, and carrier selection.
Hazard Classes
Class 3 flammable liquids: the most-shipped class, done right
Flash points, packing groups, and common pitfalls for shipping paints, solvents, and fuels.
Class 8 corrosives: packaging, segregation & shipping
A practical guide to Class 8 corrosive classification, packaging, acid/base segregation, shipping papers, and carrier-ready load planning.
Class 9 hazmat: lithium batteries, UN2990 & marking
A definitive Class 9 guide covering lithium battery entries UN3480 and UN3481, state-of-charge checks, UN2990, package marks, and carrier-ready shipping.
Operations
Hazmat segregation table: what can't ride together
The hazmat segregation table decoded: which incompatible classes cannot ride together, how to read 49 CFR 177.848, and load-planning rules that prevent costly rejections.
Why hazmat loads wait at docks — and how appointment scheduling fixes it
The hidden cost of hazmat detention, and how document pre-checks keep freight moving.
From MSDS to POD: an orchestrated hazmat shipment, step by step
Follow 20 drums of Class 3 acetone from Houston to Nashville, tracing every compliance decision.
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