{"data":{"id":"us/46-cfr-32.56-40","jurisdiction":"us","citation":"46 CFR 32.56-40","heading":"-40 Category A machinery spaces: Insulation—T/ALL.","body":"Structural insulation within category A machinery spaces must have a barrier such as metal foil, sheet metal, cementitious coating, or other vapor barrier so that the surface of that insulation is impervious to oil and oil vapors.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER D—TANK VESSELS","PART 32—SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS","Subpart 32.56—Structural Fire Protection for Tank Ships With a Keel Laying Date On or After January 1, 1975"],"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":"e0dda7f9c59c7defb6041256757e85e652814445f9eb1f347934adbaaae6d571","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-32.56-35","next":"us/46-cfr-32.56-45"},"notice":"GroundRules: Original legal text. Not legal advice."}