{"data":{"id":"us/46-cfr-61.30-1","jurisdiction":"us","citation":"46 CFR 61.30-1","heading":"-1 Scope.","body":"The term thermal fluid heater as used in this part includes any fired automatic auxiliary heating unit which uses a natural or synthetic fluid in the liquid phase as the heat exchange medium and whose operating temperature and pressure do not exceed 204 °C (400 °F) and 225 psig, respectively. Thermal fluid heaters having operating temperatures and pressures higher than 204 °C (400 °F) and 225 psig, respectively, are inspected under subpart 61.05.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER F—MARINE ENGINEERING","PART 61—PERIODIC TESTS AND INSPECTIONS","Subpart 61.30—Tests and Inspections of Fired Thermal Fluid Heaters"],"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":"ec1c8230a1beb1fb5c7c23b6debf0747a0e2a3a8997e1e4e53d773886a625470","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-61.20-23","next":"us/46-cfr-61.30-5"},"notice":"GroundRules: Original legal text. Not legal advice."}