{"data":{"id":"us/49-cfr-238.223","jurisdiction":"us","citation":"49 CFR 238.223","heading":"Locomotive fuel tanks.","body":"Locomotive fuel tanks shall comply with either the following or an industry standard providing at least an equivalent level of safety if approved by FRA under § 238.21:\n(a) External fuel tanks. External locomotive fuel tanks shall comply with the requirements contained in Appendix D to this part.\n(b) Internal fuel tanks. (1) Internal locomotive fuel tanks shall be positioned in a manner to reduce the likelihood of accidental penetration from roadway debris or collision.\n(2) Internal fuel tank vent systems shall be designed so they do not become a path of fuel loss in any tank orientation due to a locomotive overturning.\n(3) Internal fuel tank bulkheads and skin shall, at a minimum, be equivalent to a 5/16-inch thick steel plate with a yield strength of 25,000 pounds per square inch. Material of a higher yield strength may be used to decrease the required thickness of the material provided at least an equivalent level of strength is maintained. Skid plates are not required.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 238—PASSENGER EQUIPMENT SAFETY STANDARDS","Subpart C—Specific Requirements for Tier I Passenger Equipment"],"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":"51d798fa9cdc89187a9e1b4a5aacbb9809bcd0b40583d5ca4175d430ce05ed5a","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-238.221","next":"us/49-cfr-238.225"},"notice":"GroundRules: Original legal text. Not legal advice."}