{"data":{"id":"us/49-cfr-173.53","jurisdiction":"us","citation":"49 CFR 173.53","heading":"Provisions for using old classifications of explosives.","body":"Where the classification system in effect prior to January 1, 1991, is referenced in State or local laws, ordinances or regulations not pertaining to the transportation of hazardous materials, the following table may be used to compare old and new hazard class names:\nCurrent classification Class name prior to Jan. 1, 1991\nDivision 1.1 Class A explosives.\nDivision 1.2 Class A or Class B explosives.\nDivision 1 3 Class B explosive.\nDivision 1.4 Class C explosives.\nDivision 1.5 Blasting agents.\nDivision 1.6 No applicable hazard class.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS","PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS","Subpart C—Definitions, Classification and Packaging for Class 1"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"9d63d5c44c01d12fa7dda7b3dc29a5753181d418ffe96662b7dac8ffd8cd573d","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-173.52","next":"us/49-cfr-173.54"},"notice":"GroundRules: Original legal text. Not legal advice."}