49 CFR Part 172: Hazmat communication and training
Find hazardous-materials table, shipping-paper, marking, labeling, placarding and training sources with related questions.
Start with the controlling source
- 49 CFR Part 172 — Official regulation
- 49 CFR 172.101 — Hazardous materials table
- 49 CFR 172.504 — Placarding requirements
- 49 CFR 172.704 — Training requirements
Read the current section, its scope and exceptions, and applicable agency guidance. A citation identifies a rule; it does not establish that the rule applies to your operation.
Before you ask
- Have the material's classification and proper shipping name available.
- Identify the quantity, packaging, and transportation mode.
- Specify whether the question concerns papers, marks, labels, placards, training, or an exception.
Questions and guides
Source-checked overviews are identified separately from generated guidance that still needs source review.
Source-checked overviewClass 3 highway/rail placarding starting rules49 CFR 172.504 · 49 CFR 172.542Guidance · source review requiredDo empty hazmat containers need shipping papers?§ 49 CFR 173.29Guidance · source review requiredHow do the placarding tables work under 49 CFR 172.504?§ 49 CFR 172.504Guidance · source review requiredWhat are the marking requirements for hazardous materials packages under 49 CFR 172.300?§ 49 CFR 172.300Guidance · source review requiredWhat does 49 CFR 172.1 (Purpose and scope) require?§ 49 CFR 172.1Guidance · source review requiredWhat does 49 CFR 172.101 (Purpose and use of the hazardous materials table) require?§ 49 CFR 172.101Guidance · source review requiredWhat does 49 CFR 172.102 (Special provisions) require?§ 49 CFR 172.102Guidance · source review requiredWhat does 49 CFR 172.200 (Applicability) require?§ 49 CFR 172.200
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