{"data":{"id":"us/49-cfr-179.301","jurisdiction":"us","citation":"49 CFR 179.301","heading":"Individual specification requirements for multi-unit tank car tanks.","body":"(a) In addition to § 179.300 the individual specification requirements are as follows:\nDOT specification 106A500-X 106A800-X 110A500-W 110A600-W 110A800-W 110A1000-W\nMinimum required bursting pressure, psig (1) (1) 1250 1500 2000 2500\nMinimum thickness shell, inches 13⁄32 11⁄16 11⁄32 3⁄8 15⁄32 19⁄32\nTest pressure, psig (see § 179.300-16) 500 800 500 600 800 1000\nSafety relief devices, psig (see § 179.300-15)\nStart-to-discharge, or burst maximum, p.s.i. 375 600 375 450 600 700\nVapor-tight, minimum psig 300 480 300 360 480 650\n1 None specified.\n(b) [Reserved]","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 E—Specifications for Multi-Unit Tank Car Tanks (Classes DOT-106A and 110AW)"],"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":"0b7ab1f68c3ba01c41654f9a6cf41da5fc7da2a2a2b53ba4f9b68e690ef75601","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.300-20","next":"us/49-cfr-179.302"},"notice":"GroundRules: Original legal text. Not legal advice."}