{"data":{"id":"us/46-cfr-64.17","jurisdiction":"us","citation":"46 CFR 64.17","heading":"Minimum tank thickness.","body":"(a) Except as allowed in paragraph (b) of this section, a tank with a diameter of—\n(1) 6 feet or less must have a shell and head of 3/16 inch thickness or more; or\n(2) More than 6 feet must have a shell and head of 1/4 inch thickness or more.\n(b) If the tank has additional framework to guard against accidental puncturing of the tank, the shell and head thickness must be 1/8 inch or more.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER F—MARINE ENGINEERING","PART 64—MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS","Subpart B—Standards for an MPT"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"b8feebbc1c895ab5ccc744708ceceb2f7d18d1cb552ec576d89b98bc327277ad","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-64.15","next":"us/46-cfr-64.19"},"notice":"GroundRules: Original legal text. Not legal advice."}