{"data":{"id":"us/49-cfr-179.400-24","jurisdiction":"us","citation":"49 CFR 179.400-24","heading":"-24 Stamping.","body":"(a) A tank that complies with all specification requirements must have the following information plainly and permanently stamped into the metal near the center of the head of the outer jacket at the “B” end of the car, in letters and figures at least 3/8-inch high, in the following order:\nExample of required stamping\nSpecification DOT-113A60W.\nDesign service temperature Minus 423 °F.\nInner tank Inner Tank.\nMaterial ASTM A240-304.\nShell thickness Shell 3⁄16 inch.\nHead thickness Head 3⁄16 inch.\nInside diameter ID 107 inch.\nInner tank builder's initials ABC.\nDate of original test (month and year) and initials of person conducting original test 00-0000GHK.\nWater capacity 00000 lbs.\nOuter jacket Outer jacket.\nMaterial ASTM A515-70.\nOuter jacket builder's initials DEF.\nCar assembler's initials (if other than inner tank or outer jacket builder) XYZ.\n(b) Any stamping on the shell or heads of the inner tank is prohibited.\n(c) In lieu of the stamping required by paragraph (a) of this section, the specified markings may be incorporated on a data plate of corrosion-resistant metal, fillet welded in place on the head of the outer jacket at the “B” end of the car.","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 179—SPECIFICATIONS FOR TANK CARS","Subpart F—Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)"],"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":"2eb9362990a2ba96077d4f03702dd9086a7d3b9b6ba2608b568c61ba53950591","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.400-23","next":"us/49-cfr-179.400-25"},"notice":"GroundRules: Original legal text. Not legal advice."}