{"data":{"id":"us/49-cfr-178.338-6","jurisdiction":"us","citation":"49 CFR 178.338-6","heading":"-6 Manholes.","body":"(a) Each tank in oxygen service must be provided with a manhole as prescribed in Section VIII of the ASME Code (IBR, see § 171.7 of this subchapter).\n(b) Each tank having a manhole must be provided with a means of entrance and exit through the jacket, or the jacket must be marked to indicate the manway location on the tank.\n(c) A manhole with a bolted closure may not be located on the front head of the tank.","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 J—Specifications for Containers for Motor Vehicle Transportation"],"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":"c8bda8c991f79123f1d662fb233eaef10f6d985aeaa9e411e9ad2e834c3ac9fb","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-178.338-5","next":"us/49-cfr-178.338-7"},"notice":"GroundRules: Original legal text. Not legal advice."}