{"data":{"id":"us/49-cfr-178.255-2","jurisdiction":"us","citation":"49 CFR 178.255-2","heading":"-2 Material.","body":"(a) Material used in the tank must be steel of good weldable quality and conform with the requirements in Sections V, VIII, and IX of the ASME Code (IBR, see § 171.7 of this subchapter).\n(b) The minimum thickness of metal, exclusive of lining material, for shell and heads of tanks shall be as follows:\nTank capacity Minimum thickness (inch)\nNot more than 1,200 gallons 1⁄4\nOver 1,200 to 1,800 gallons 5⁄16\nOver 1,800 gallons 3⁄8","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 178—SPECIFICATIONS FOR PACKAGINGS","Subpart H—Specifications for Portable Tanks"],"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":"4ee7820cd23102dde700ce7c216f9b50821b9bdbcfd002e6797a444884a22fc8","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-178.255-1","next":"us/49-cfr-178.255-3"},"notice":"GroundRules: Original legal text. Not legal advice."}