{"data":{"id":"us/49-cfr-179.202-5","jurisdiction":"us","citation":"49 CFR 179.202-5","heading":"-5 Tank head puncture resistance system.","body":"The DOT-117 specification tank car must have a tank head puncture resistance system in conformance with § 179.16(c). The full height head shields must have a minimum thickness of 1/2 inch.","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":"0341fa17057f2592e168a150d6e1fc7a90cac9107e464d9e0b8610ceb2f540a4","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.202-4","next":"us/49-cfr-179.202-6"},"notice":"GroundRules: Original legal text. Not legal advice."}