49 CFR Subpart A - General
- § 173.1 Purpose and scope.
- § 173.2 Hazardous materials classes and index to hazard class definitions.
- § 173.2a Classification of a material having more than one hazard.
- § 173.3 Packaging and exceptions.
- § 173.4 Small quantities for highway and rail.
- § 173.4a Excepted quantities.
- § 173.4b De minimis exceptions.
- § 173.5 Agricultural operations.
- § 173.5a Oilfield service vehicles, mechanical displacement meter provers, and roadway striping vehicles exceptions.
- § 173.5b Portable and mobile refrigeration systems.
- § 173.6 Materials of trade exceptions.
- § 173.7 Government operations and materials.
- § 173.8 Exceptions for non-specification packagings used in intrastate transportation.
- § 173.9 Transport vehicles or freight containers containing lading which has been fumigated.
- § 173.10 Tank car shipments.
- § 173.11 Exceptions for shipment of light bulbs containing hazardous materials.
- § 173.12 Exceptions for shipment of waste materials.
- § 173.13 Exceptions for Class 3, Divisions 4.1, 4.2, 4.3, 5.1, 6.1, and Classes 8 and 9 materials.