![[Header] PHMSA - U.S. Department of Transportation - Pipeline and Hazardous materials Safety Adminis](/staticfiles/PHMSA/SiteHeaders/Images/PHMSASiteHeader.gif)
| HM-000 | Consolidation of Regulations and Authorities | Jan 1, 1977 |
| HM-001 | Rulemaking Procedure | Nov 30, 1967 |
| HM-002 | Packaging of RAM | Jan 20, 1968 |
| HM-003 | Misc. Amdts. | Feb 17, 1968 |
| HM-004 | Shipments by Highway Poisons with Foodstuffs | Dec 29, 1967 |
| HM-005 | Corrosion in MC 330 & 331 Cargo Tanks | Jan 31, 1968 |
| HM-006 | Transport of Highly Volatile Liquids | Jul 17, 1968 |
| HM-006A | Transport of Highly Volatile Liquids | Apr 23, 1969 |
| HM-007 | Notice to Revise Regulations- Simplify | Aug 21, 1968 |
| HM-008 | Labeling & Classing of HM | Oct 16, 1968 |
| HM-009 | New Steel Drum specification 2E Bottles Marking Size | Nov 20, 1968 |
| HM-010 | Tank Car Specifications | Nov 21, 1968 |
| HM-011 | General Regulations | Dec 3, 1968 |
| HM-012 | Shipment of Anhydrous Hydrazine | Jan 16, 1969 |
| HM-013 | Welded Aluminum Cylinders | Feb 15, 1969 |
| HM-014 | HM in Specification 106A and 110A Tanks by Rail FReight and Highway | Feb 15, 1969 |
| HM-015 | Aerosol Flash Point Restriction | Mar 12, 1969 |
| HM-016 | HM Table Amdt. | Mar 12, 1969 |
| HM-017 | Shipment of Residual Motor Fuel Antiknock Compound | Mar 12, 1969 |
| HM-018 | Benzoyl Peroxide, Wet | Mar 12, 1969 |
| HM-019 | Use of Certain Multiunit Tank Car Tanks | Apr 9, 1969 |
| HM-020 | Hydrofluoric Acid | Apr 12, 1969 |
| HM-021 | Electric Storage Batteries | Apr 12, 1969 |
| HM-022 | Matter Incorporated by Reference | Apr 23, 1969 |
| HM-023 | Specification 8BW Cylinder for Acetylene | Apr 23, 1969 |
| HM-023A | Acetylene Cylinders Manufacturing Rqmts | May 1, 1969 |
| HM-024 | Explosives on Vehicles in Combination | May 8, 1969 |
| HM-025 | Special Composite Package for Electrolyte (Acid) or Alkaline Corrosive Battery Fluid | May 28, 1969 |
| HM-026 | Specification 50X Portable Tanks and 4B240X Cylinders | Jul 16, 1969 |
| HM-027 | Use of Specification 17 Series Ssteel Drums Amdts. | Jul 23, 1969 |
| HM-028 | Removal of Label Exemption | Jul 23, 1969 |
| HM-029 | Carbon Monoxide in Cylinders and Increased Filling Limitations | Jul 25, 1969 |
| HM-030 | Specification 1K Carboy for Certain Chloride | Aug 20, 1969 |
| HM-031 | Extension of Specification 3HT Cylinder Service Life | Aug 20, 1969 |
| HM-032 | Change in Shipping Name and Removal of Authorization to Ship or Transport Dry Dimethylhexane Dihydroperoxide | Aug 20, 1969 |
| HM-033 | Cyanides or Cyanide Mixtures | Aug 20, 1969 |
| HM-034 | Liquefied Petroleum Gas in Cargo Tanks Constructed of Quenched and Tempered Steel | Aug 20, 1969 |
| HM-035 | Cargo Tanks | Oct 9, 1969 |
| HM-036 | Reports of Hazardous Materials Incidents | Oct 29, 1969 |
| HM-036A | Elimination of Certain Reporting Requirements | Jun 16, 1980 |
| HM-036B | Detailed Hazardous Materials Incident Reports | Mar 16, 1984 |
| HM-037 | Aniline Oil | Dec 10, 1969 |
| HM-038 | Interlocking Couplers and Restriction of Capacity of Tank Cars | Dec 11, 1969 |
| HM-039 | Extension of Retest Interval for Nonpressure Tank Cars | Dec 16, 1969 |
| HM-040 | MC330 and MC331 Cargo Tanks in Chlorine Service | Jan 30, 1970 |
| HM-041 | Specification for Fiberboard Boxes; Stitching Staples | Jan 30, 1970 |
| HM-042 | Combustible Liquids | Feb 21, 1970 |
| HM-043 | Oil Well Cartridges | Mar 7, 1970 |
| HM-044 | Parathion and Methyl Parathion in Tank Cars | Apr 9, 1970 |
| HM-045 | Cargo Tanks in TOFC | Apr 15, 1970 |
| HM-046 | Reclassification of Fusee | Apr 22, 1970 |
| HM-047 | Ethylene Imine, Inhibited in Tank Cars | May 6, 1970 |
| HM-048 | Matter Incorporated by Reference | May 29, 1970 |
| HM-049 | Dimethyl Ether in Cargo Tanks | Jun 2, 1970 |
| HM-050 | Extension of Retest Period for certain Safety Relief Valves | May 29, 1970 |
| HM-051 | Classification of Certain Hazardous Materials on basis of their Health Hazards | Jun 6, 1970 |
| HM-052 | Nitric Acid in Type 105A-ALW Tank Car | Jun 10, 1970 |
| HM-053 | Application to Private Carriers by Motor Vehicle | Jun 13, 1970 |
| HM-054 | Extended Use of Class 111AW3 Tank Cars | Jul 17, 1970 |
| HM-055 | Polyethylene Liners | Oct 20, 1970 |
| HM-056 | Miscellaneous Amendments to Chapter | Sep 30, 1973 |
| HM-057 | Proposed Classification & Pkg. of Corrosive Liquids | Aug 18, 1971 |
| HM-058 | Retest of Damaged Tank Car Tanks | Jan 5, 1971 |
| HM-059 | Class A Poisons in Cylinders | Oct 10, 1970 |