{"data":{"id":"us/46-cfr-50.10-30","jurisdiction":"us","citation":"46 CFR 50.10-30","heading":"-30 Coast Guard number.","body":"(a) The Coast Guard number means that number assigned to boilers and pressure vessels by the Officer in Charge, Marine Inspection, who makes the final tests and inspections.\n(b) The Coast Guard number must be stamped on the nameplates of boilers and pressure vessels.\n(c) The Coast Guard number is comprised of the following:\n(1) Three capital letters which identify the office of the issuing Officer in Charge, Marine Inspection (see table 1 to § 50.10-30); followed by,\n(2) An OCMI serial number, by which the particular boiler or pressure vessel can be identified; the first two digits of which will identify the calendar year the number was assigned.\nTable 1 to § 50.10-30—Previous Sector Office Identification Letters in Coast Guard Numbers for Boilers and Pressure Vessels\nIdentification Sector Office\nALB Albany.\nANC Anchorage.\nBAL Baltimore.\nBOS Boston.\nBUF Buffalo.\nCHA Charleston.\nCHI Chicago.\nCIN Cincinnati.\nCLE Cleveland.\nCOR Corpus Christi.\nDET Detroit.\nDUL Duluth.\nGAL Galveston.\nGUA Guam.\nHON Honolulu.\nHOU Houston.\nHRV Hampton Roads, VA.\nHUN Huntington.\nJAC Jacksonville.\nJUN Juneau.\nLIS Long Island.\nLOS Los Angeles.\nLOU Louisville.\nMEM Memphis.\nMIA Miami.\nMIL Milwaukee.\nMIN Minneapolis.\nMOB Mobile.\nMOR Morgan City.\nNAS Nashville.\nNEW New Orleans.\nNYC New York.\nPAD Paducah.\nPAT Port Arthur.\nPHI Philadelphia.\nPIT Pittsburgh.\nPOM Portland, ME.\nPOR Portland, OR.\nPRO Providence.\nROT Rotterdam.\nSAV Savannah.\nSDC San Diego.\nSEA Seattle.\nSFC San Francisco.\nSIM Saint Ignace.\nSJP San Juan.\nSLM St. Louis.\nSTB Sturgeon Bay.\nTAM Tampa.\nTOL Toledo.\nVAL Valdez.\nWNC Wilmington, NC.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER F—MARINE ENGINEERING","PART 50—GENERAL PROVISIONS","Subpart 50.10—Definition of Terms Used in This Subchapter"],"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":"a0b7e3ef8584feff030323cd1d3c89c6ecdae4b6d3cd1c538c1a5dd7b8d24a88","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-50.10-25","next":"us/46-cfr-50.10-35"},"notice":"GroundRules: Original legal text. Not legal advice."}