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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 49 - Transportation |
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Subtitle B—Other Regulations Relating to Transportation |
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Chapter I—Pipeline and Hazardous Materials Safety Administration, Department of Transportation |
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SubChapter C—Hazardous Materials Regulations |
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Part 173 - Shippers—General Requirements for Shipments and Packagings |
| Subpart A - General |
| § 173.1 - Purpose and scope. |
| § 173.2 - Hazardous material classes and index to hazard class definitions. |
| § 173.3 - Packaging and exceptions. |
| § 173.4 - Small quantities for highway and rail. |
| § 173.5 - Agricultural operations. |
| § 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. |
| § 173.14 - xxx |
| § 173.2a - Classification of a material having more than one hazard. |
| § 173.4a - Excepted quantities. |
| § 173.4b - De minimis exceptions. |
| § 173.5a - Oilfield service vehicles, mechanical displacement meter provers, and roadway striping vehicles exceptions. |
| § 173.5b - Portable and mobile refrigeration systems. |
| Subpart B - Preparation of Hazardous Materials for Transportation |
| § 173.21 - Forbidden materials and packages. |
| § 173.22 - Shipper's responsibility. |
| § 173.23 - Previously authorized packaging. |
| § 173.24 - General requirements for packagings and packages. |
| § 173.25 - Authorized packagings and overpacks. |
| § 173.26 - Quantity limitations. |
| § 173.27 - General requirements for transportation by aircraft. |
| § 173.28 - Reuse, reconditioning and remanufacture of packagings. |
| § 173.29 - Empty packagings. |
| § 173.30 - Loading and unloading of transport vehicles. |
| § 173.31 - Use of tank cars. |
| § 173.32 - Requirements for the use of portable tanks. |
| § 173.33 - Hazardous materials in cargo tank motor vehicles. |
| § 173.34 - [Reserved] |
| § 173.35 - Hazardous materials in IBCs. |
| § 173.36 - Hazardous materials in Large Packagings. |
| § 173.37 - Hazardous Materials in Flexible Bulk Containers. |
| § 173.40 - General packaging requirements for toxic materials packaged in cylinders. |
| § 173.41 - Sampling and testing program for unrefined petroleum-based products. |
| § 173.22a - Use of packagings authorized under special permits. |
| § 173.32a - Approval of Specification IM portable tanks. |
| § 173.32b - Periodic testing and inspection of Specification IM portable tanks. |
| § 173.32c - Use of Specification IM portable tanks. |
| § 173.24a - Additional general requirements for non-bulk packagings and packages. |
| § 173.24b - Additional general requirements for bulk packagings. |
| Subpart C - Definitions, Classification and Packaging for Class 1 |
| § 173.50 - Class 1 - Definitions. |
| § 173.51 - Authorization to offer and transport explosives. |
| § 173.52 - Classification codes and compatibility groups of explosives. |
| § 173.53 - Provisions for using old classifications of explosives. |
| § 173.54 - Forbidden explosives. |
| § 173.55 - [Reserved] |
| § 173.56 - New explosives - definition and procedures for classification and approval. |
| § 173.57 - Acceptance criteria for new explosives. |
| § 173.58 - Assignment of class and division for new explosives. |
| § 173.59 - Description of terms for explosives. |
| § 173.60 - General packaging requirements for explosives. |
| § 173.61 - Mixed packaging requirements. |
| § 173.62 - Specific packaging requirements for explosives. |
| § 173.63 - Packaging exceptions. |
| § 173.64 - Exceptions for Division 1.3 and 1.4 fireworks. |
| § 173.65 - Exceptions for Division 1.4G consumer fireworks. |
| § 173.66 - Requirements for bulk packagings of certain explosives and oxidizers. |
| § 173.67 - xxx |
| Subpart D - Definitions Classification, Packing Group Assignments and Exceptions for Hazardous Materials Other Than Class 1 and Class 7 |
| § 173.115 - Class 2, Divisions 2.1, 2.2, and 2.3—Definitions. |
| § 173.116 - Class 2 - Assignment of hazard zone. |
| § 173.120 - Class 3 - Definitions. |
| § 173.121 - Class 3—Assignment of packing group. |
| § 173.124 - Class 4, Divisions 4.1, 4.2 and 4.3—Definitions. |
| § 173.125 - Class 4 - Assignment of packing group. |
| § 173.127 - Class 5, Division 5.1 - Definition and assignment of packing groups. |
| § 173.128 - Class 5, Division 5.2 - Definitions and types. |
| § 173.129 - [Reserved] |
| § 173.132 - Class 6, Division 6.1 - Definitions. |
| § 173.133 - Assignment of packing group and hazard zones for Division 6.1 materials. |
| § 173.134 - Class 6, Division 6.2 - Definitions and exceptions. |
| § 173.136 - Class 8 - Definitions. |
| § 173.137 - Class 8—Assignment of packing group. |
| § 173.140 - Class 9 - Definitions. |
| § 173.141 - Class 9 - Assignment of packing group. |
| § 173.144 - Other Regulated Material (ORM) - Definitions. |
| § 173.145 - Other Regulated Materials - Assignment of packing group. |
| § 173.150 - Exceptions for Class 3 (flammable and combustible liquids). |
| § 173.151 - Exceptions for Class 4. |
| § 173.152 - Exceptions for Division 5.1 (oxidizers) and Division 5.2 (organic peroxides). |
| § 173.153 - Exceptions for Division 6.1 (poisonous materials). |
| § 173.154 - Exceptions for Class 8 (corrosive materials). |
| § 173.155 - Exceptions for Class 9 (miscellaneous hazardous materials). |
| § 173.156 - Exceptions for limited quantity materials. |
| § 173.157 - Reverse logistics - General requirements and exceptions for reverse logistics. |
| §§ 173.144--173.145 - [Reserved] |
| §§ 173.117--173.119 - [Reserved] |
| Subpart E - Non-bulk Packaging for Hazardous Materials Other Than Class 1 and Class 7 |
| § 173.158 - Nitric acid. |
| § 173.159 - Batteries, wet. |
| § 173.160 - Bombs, smoke, non-explosive (corrosive). |
| § 173.161 - Chemical kits and first aid kits. |
| § 173.162 - Gallium. |
| § 173.163 - Hydrogen fluoride. |
| § 173.164 - Mercury (metallic and articles containing mercury). |
| § 173.165 - Polyester resin kits. |
| § 173.166 - Safety devices. |
| § 173.167 - ID8000 consumer commodities. |
| § 173.168 - Chemical oxygen generators. |
| § 173.170 - Black powder for small arms. |
| § 173.171 - Smokeless powder for small arms. |
| § 173.172 - Aircraft hydraulic power unit fuel tank. |
| § 173.173 - Paint, paint-related material, adhesives, ink and resins. |
| § 173.174 - Refrigerating machines. |
| § 173.175 - Permeation devices. |
| § 173.176 - Capacitors. |
| § 173.181 - Pyrophoric materials (liquids). |
| § 173.182 - Barium azide - 50 percent or more water wet. |
| § 173.183 - Nitrocellulose base film. |
| § 173.184 - Highway or rail fusee. |
| § 173.185 - Lithium cells and batteries. |
| § 173.186 - Matches. |
| § 173.187 - Pyrophoric solids, metals or alloys, n.o.s. |
| § 173.188 - White or yellow phosphorus. |
| § 173.189 - Batteries containing sodium or cells containing sodium. |
| § 173.192 - Packaging for certain toxic gases in Hazard Zone A. |
| § 173.193 - Bromoacetone, methyl bromide, chloropicrin and methyl bromide or methyl chloride mixtures, etc. |
| § 173.194 - Gas identification sets. |
| § 173.195 - Hydrogen cyanide, anhydrous, stabilized (hydrocyanic acid, aqueous solution). |
| § 173.196 - Category A infectious substances. |
| § 173.197 - Regulated medical waste. |
| § 173.198 - Nickel carbonyl. |
| § 173.199 - Category B infectious substances. |
| § 173.201 - Non-bulk packagings for liquid hazardous materials in Packing Group I. |
| § 173.202 - Non-bulk packagings for liquid hazardous materials in Packing Group II. |
| § 173.203 - Non-bulk packagings for liquid hazardous materials in Packing Group III. |
| § 173.204 - Non-bulk, non-specification packagings for certain hazardous materials. |
| § 173.205 - Specification cylinders for liquid hazardous materials. |
| § 173.206 - Packaging requirements for chlorosilanes. |
| § 173.211 - Non-bulk packagings for solid hazardous materials in Packing Group I. |
| § 173.212 - Non-bulk packagings for solid hazardous materials in Packing Group II. |
| § 173.213 - Non-bulk packagings for solid hazardous materials in Packing Group III. |
| § 173.214 - Packagings which require approval by the Associate Administrator. |
| § 173.216 - Asbestos, blue, brown or white. |
| § 173.217 - Carbon dioxide, solid (dry ice). |
| § 173.218 - Fish meal or fish scrap. |
| § 173.219 - Life-saving appliances. |
| § 173.220 - Internal combustion engines, vehicles, machinery containing internal combustion engines, battery-powered equipment or machinery, fuel cell-powered equipment or machinery. |
| § 173.221 - Polymeric beads, expandable and Plastic molding compound. |
| § 173.222 - Dangerous goods in articles, machinery, or apparatus. |
| § 173.223 - Packagings for certain flammable solids. |
| § 173.224 - Packaging and control and emergency temperatures for self-reactive materials. |
| § 173.225 - Packaging requirements and other provisions for organic peroxides. |
| § 173.226 - Materials poisonous by inhalation, Division 6.1, Packing Group I, Hazard Zone A. |
| § 173.227 - Materials poisonous by inhalation, Division 6.1, Packing Group I, Hazard Zone B. |
| § 173.228 - Bromine pentafluoride or bromine trifluoride. |
| § 173.229 - Chloric acid solution or chlorine dioxide hydrate, frozen. |
| § 173.230 - Fuel cell cartridges containing hazardous material. |
| § 173.231 - Ammonium nitrate emulsion, suspension or gel. |
| § 173.232 - Articles containing hazardous materials, n.o.s. |
| § 173.159a - Exceptions for non-spillable batteries. |
| Subpart F - Bulk Packaging for Hazardous Materials Other Than Class 1 and Class 7 |
| § 173.240 - Bulk packaging for certain low hazard solid materials. |
| § 173.241 - Bulk packagings for certain low hazard liquid and solid materials. |
| § 173.242 - Bulk packagings for certain medium hazard liquids and solids, including solids with dual hazards. |
| § 173.243 - Bulk packaging for certain high hazard liquids and dual hazard materials which pose a moderate hazard. |
| § 173.244 - Bulk packaging for certain pyrophoric liquids (Division 4.2), dangerous when wet (Division 4.3) materials, and poisonous liquids with inhalation hazards (Division 6.1). |
| § 173.245 - Bulk packaging for extremely hazardous materials such as poisonous gases (Division 2.3). |
| § 173.247 - Bulk packaging for certain elevated temperature materials. |
| § 173.249 - Bromine. |
| § 173.251 - Bulk packaging for ammonium nitrate emulsion, suspension, or gel. |
| Subpart G - Gases; Preparation and Packaging |
| § 173.300 - [Reserved] |
| § 173.301 - General requirements for shipment of compressed gases and other hazardous materials in cylinders, UN pressure receptacles, and spherical pressure vessels. |
| § 173.302 - Filling of cylinders with nonliquefied (permanent) compressed gases or adsorbed gases. |
| § 173.303 - Charging of cylinders with compressed gas in solution (acetylene). |
| § 173.304 - Filling of cylinders with liquefied compressed gases. |
| § 173.305 - Charging of cylinders with a mixture of compressed gas and other material. |
| § 173.306 - Limited quantities of compressed gases. |
| § 173.307 - Exceptions for compressed gases. |
| § 173.308 - Lighters. |
| § 173.309 - Fire extinguishers. |
| § 173.310 - Exceptions for radiation detectors. |
| § 173.311 - Metal hydride storage systems. |
| § 173.312 - Requirements for shipment of MEGCs. |
| § 173.313 - UN Portable Tank Table for Liquefied Compressed Gases and Chemical Under Pressure. |
| § 173.314 - Compressed gases in tank cars and multi-unit tank cars. |
| § 173.315 - Compressed gases in cargo tanks and portable tanks. |
| § 173.316 - Cryogenic liquids in cylinders. |
| § 173.318 - Cryogenic liquids in cargo tanks. |
| § 173.319 - Cryogenic liquids in tank cars. |
| § 173.320 - Cryogenic liquids; exceptions. |
| § 173.321 - Ethylamine. |
| § 173.322 - Ethyl chloride. |
| § 173.323 - Ethylene oxide. |
| § 173.334 - Organic phosphates mixed with compressed gas. |
| § 173.335 - Chemical under pressure n.o.s. |
| § 173.336 - Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied. |
| § 173.337 - Nitric oxide. |
| § 173.338 - Tungsten hexafluoride. |
| § 173.340 - Tear gas devices. |
| § 173.300a - Approval of independent inspection agency. |
| § 173.300b - Approval of non-domestic chemical analyses and tests. |
| § 173.300c - Termination of approval. |
| § 173.301a - Additional general requirements for shipment of specification cylinders. |
| § 173.301b - Additional general requirements for shipment of UN pressure receptacles. |
| § 173.302a - Additional requirements for shipment of non-liquefied (permanent) compressed gases in specification cylinders. |
| § 173.302b - Additional requirements for shipment of non-liquefied (permanent) compressed gases in UN pressure receptacles. |
| § 173.302c - Additional requirements for the shipment of adsorbed gases in UN pressure receptacles. |
| § 173.304a - Additional requirements for shipment of liquefied compressed gases in specification cylinders. |
| § 173.304b - Additional requirements for shipment of liquefied compressed gases in UN pressure receptacles. |
| Subpart H - XXX |
| Subpart I - Class 7 (Radioactive) Materials |
| § 173.401 - Scope. |
| § 173.403 - Definitions. |
| § 173.410 - General design requirements. |
| § 173.411 - Industrial packages. |
| § 173.412 - Additional design requirements for Type A packages. |
| § 173.413 - Requirements for Type B packages. |
| § 173.415 - Authorized Type A packages. |
| § 173.416 - Authorized Type B packages. |
| § 173.417 - Authorized fissile materials packages. |
| § 173.418 - Authorized packages - pyrophoric Class 7 (radioactive) materials. |
| § 173.419 - Authorized packages - oxidizing Class 7 (radioactive) materials. |
| § 173.420 - Uranium hexafluoride (fissile, fissile excepted and non-fissile). |
| § 173.421 - Excepted packages for limited quantities of Class 7 (radioactive) materials. |
| § 173.422 - Additional requirements for excepted packages containing Class 7 (radioactive) materials. |
| § 173.423 - Requirements for multiple hazard limited quantity Class 7 (radioactive) materials. |
| § 173.424 - Excepted packages for radioactive instruments and articles. |
| § 173.425 - Table of activity limits - excepted quantities and articles. |
| § 173.426 - Excepted packages for articles containing natural uranium or thorium. |
| § 173.427 - Transport requirements for low specific activity (LSA) Class 7 (radioactive) material and surface contaminated objects (SCO). |
| § 173.428 - Empty Class 7 (radioactive) materials packaging. |
| § 173.431 - Activity limits for Type A and Type B packages. |
| § 173.433 - Requirements for determining basic radionuclide values, and for the listing of radionuclides on shipping papers and labels. |
| § 173.434 - Activity-mass relationships for uranium and natural thorium. |
| § 173.435 - Table of A1 and A2 values for radionuclides. |
| § 173.436 - Exempt material activity concentrations and exempt consignment activity limits for radionuclides. |
| § 173.441 - Radiation level limitations and exclusive use provisions. |
| § 173.442 - Thermal limitations. |
| § 173.443 - Contamination control. |
| § 173.447 - Storage incident to transportation - general requirements. |
| § 173.448 - General transportation requirements. |
| § 173.453 - Fissile materials - exceptions. |
| § 173.457 - Transportation of fissile material packages - specific requirements. |
| § 173.459 - Mixing of fissile material packages with non-fissile or fissile-excepted material packages. |
| § 173.461 - Demonstration of compliance with tests. |
| § 173.462 - Preparation of specimens for testing. |
| § 173.465 - Type A packaging tests. |
| § 173.466 - Additional tests for Type A packagings designed for liquids and gases. |
| § 173.467 - Tests for demonstrating the ability of Type B and fissile materials packagings to withstand accident conditions in transportation. |
| § 173.468 - Test for LSA-III material. |
| § 173.469 - Tests for special form Class 7 (radioactive) materials. |
| § 173.471 - Requirements for U.S. Nuclear Regulatory Commission approved packages. |
| § 173.472 - Requirements for exporting DOT Specification Type B and fissile packages. |
| § 173.473 - Requirements for foreign-made packages. |
| § 173.474 - Quality control for construction of packaging. |
| § 173.475 - Quality control requirements prior to each shipment of Class 7 (radioactive) materials. |
| § 173.476 - Approval of special form Class 7 (radioactive) materials. |
| § 173.477 - Approval of packagings containing greater than 0.1 kg of non-fissile or fissile-excepted uranium hexafluoride. |
| Subparts J--O - XXX |
| Appendix A to Part 173 |
| Appendix A to Part 173 - [Reserved] |
| Appendix B to Part 173 - Procedure for Testing Chemical Compatibility and Rate of Permeation in Plastic Packaging and Receptacles |
| Appendix C to Part 173 - Procedure for Base-level Vibration Testing |
| Appendix D to Part 173 - Test Methods for Dynamite (Explosive, Blasting, Type A) |
| Appendix H to Part 173 - Method of Testing for Sustained Combustibility |
| Appendix I to Part 173 - Calculation Method |
| Appendixes E-G to Part 173 - [Reserved] |
| Appendixes E-G to Part 173 - [Reserved] |