{"data":{"id":"us/49-cfr-179.201-1","jurisdiction":"us","citation":"49 CFR 179.201-1","heading":"-1 Individual specification requirements.","body":"In addition to § 179.200, the individual specification requirements are as follows:\nDOT Specification 1 Insulation Bursting pressure (psig) Minimum plate thickness (inches) Test pressure (psig) Bottom outlet Bottom washout References (179.201 - ***)\n111A60ALW1 Optional 240 1⁄2 60 Optional Optional 6(a).\n111A60ALW2 Optional 240 1⁄2 60 No Optional.\n111A60W1 Optional 240 7⁄16 60 Optional Optional 6(a).\n111A60W2 Optional 240 7⁄16 60 No Optional.\n111A60W5 Optional 240 7⁄16 60 No No 3, 6(b).\n111A60W6 Optional 240 7⁄16 60 Optional Optional 4, 5, 6(a), 6(c).\n111A60W7 Optional 240 7⁄16 60 No No 4, 5, 6(a).\n111A100ALW1 Optional 500 5⁄8 100 Optional Optional 6(a).\n111A100ALW2 Optional 500 5⁄8 100 No Optional.\n111A100W1 Optional 500 7⁄16 100 Optional Optional 6(a).\n111A100W2 Optional 500 7⁄16 100 No Optional.\n111A100W3 Yes 500 7⁄16 100 Optional Optional 6(a).\n111A100W4 Yes (see 179.201-11) 500 7⁄16 100 No No 6(a), 8, 10.\n111A100W5 Optional 500 7⁄16 100 No No 3.\n111A100W6 Optional 500 7⁄16 100 Optional Optional 4, 5, 6(a) and 6(c).\n111A100W7 Optional 500 7⁄16 100 No No 4, 5, 6(c).\n1 Tanks marked “ALW” are constructed from aluminum alloy plate; “AN” nickel plate; “CW,” “DW,” “EW,” “W6,” and “W7” high alloy steel or manganese-molybdenum steel plate; and those marked “BW” or “W5” must have an interior lining that conforms to § 179.201-3.","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 D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)"],"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":"51286eceb1959b96a9374be3b91395e90525e565dd48b1b5813ec259e4cb9008","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.201","next":"us/49-cfr-179.201-2"},"notice":"GroundRules: Original legal text. Not legal advice."}