expected. Ventilation from the weather deck shall be provided. Ventilation outlets shall terminate away from any openings to the interior part of the vessel a lateral distance at least equal to that specified in §38.20-1(a). These outlets shall be so located as to minimize the possibility of recirculating contaminated air through the compartment. (c) Means shall be provided for purging the following spaces of cargo vapors: (1) The space surrounding nonpressure vessel type tanks, i.e., within the secondary barrier. (2) The space surrounding pressurevessel type tanks whose piping connections are below the weather deck in accordance with §38.10-1(h). (3) The space surrounding tanks whose manhole openings are below the weather deck in accordance with §38.05-10(f). (d) Power ventilation shall be provided for each auxiliary machinery or working space located on and accessible from the cargo handling deck. Such ventilation systems shall be designed to preclude the entry of cargo vapors into the space via the open access or the ventilation system itself. [CGFR 66-33, 31 FR 15269, Dec. 6, 1966, as amended by CGFR 68-65, 33 FR 19985, Dec. 28, 1968] (a) Each tank shall be subjected to the tests and inspections described in this section in the presence of a marine inspector, except as otherwise provided in this part. (1) An internal inspection of the tank is conducted within (i) Ten years after the last internal inspection if the tank is a pressure vessel type cargo tank on an unmanned barge carrying cargo at temperatures of -67 °F (-55 °C) or warmer; or (ii) Eight years after the last internal inspection if the tank is of a type other than that described in paragraph (a)(1)(i) of this section. (2) An external examination of unlagged tanks and the visible parts of lagged tanks shall be made at each inspection for certification and at such other times as considered necessary. (3) The owner shall ensure that the amount of insulation deemed necessary by the marine inspector is removed from insulated tanks during each internal inspection to allow spot external examination of the tanks and insulation, or the thickness of the tanks may be gauged by a nondestructive means accepted by the marine inspector without the removal of insulation. (4) If required by the Officer in Charge, Marine Inspection, the owner shall conduct nondestructive testing of each tank in accordance with §38.25-3. (5) If the tank is a pressure vessel type cargo tank with an internal inspection interval of 10 years, is 30 years old or older, determined from the date it was built, the owner shall conduct nondestructive testing of that tank, in accordance with §38.25-3, during each internal inspection. (b) If the marine inspector considers a hydrostatic test necessary to determine the condition of the tank, the owner shall perform the test at a pressure of 11⁄2 times the tanks's (1) Maximum allowable pressure, as determined by the safety relief valve setting; or (2) Design pressure, when cargo tanks operate at maximum allowable pressures reduced below the design pressure in order to satisfy special mechanical stress relief requirements. NOTE: See the ASME Code, Section VIII, Appendix 3 for information on design pres sure. (c) For pressure vessels designed and/ or supported such that they cannot safely be filled with water, the Commandant will consider a pneumatic test in lieu of the hydrostatic test. A leak test shall be performed in conjunction with the pneumatic test. Pneumatic testing shall be in accordance with subchapter F (Marine Engineering) of this chapter. (d) Nonpressure vessel type tanks shall be tested to a pressure equal to the pressure on the bottom of the tank under the design conditions listed in §38.05-4(e). (e) In the application of the requirements for testing of the cargo tanks, the test shall in no case be less severe than the worst anticipated service condition of the cargo loading. (f) In the design and testing of the independent cargo tanks, consideration shall be given to the possibility of the independent tanks being subjected to external loads. [CGFR 66-33, 31 FR 15269, Dec. 6, 1966, as amended by CGD 85-061, 54 FR 50962, Dec. 11, 1989] §38.25-3 Nondestructive testing-TB/ ALL (a) Before nondestructive testing may be conducted to meet §38.25-1 (a)(4) and (a)(5), the owner shall submit a proposal to the Officer in Charge, Marine Inspection for acceptance that includes (1) The test methods and procedures to be used, all of which must meet section V of the ASME Boiler and Pressure Vessel Code (1986); (2) Each location on the tank to be tested; and (3) The test method and procedure to be conducted at each location on the tank. (b) If the Officer in Charge, Marine Inspection rejects the proposal, the Officer in Charge, Marine Inspection informs the owner of the reasons why the proposal is rejected. (c) If the Officer in Charge, Marine Inspection accepts the proposal, then the owner shall ensure that (1) The proposal is followed; and (2) Nondestructive testing is performed by personnel meeting ASNT "Recommended Practice No. SNT-TC1A (1988), Personnel Qualification and Certification in Nondestructive Testing." (d) Within 30 days after completing the nondestructive test, the owner shall submit a written report of the results to the Officer in Charge, Marine Inspection. [CGD 85-061, 54 FR 50963, Dec. 11, 1989] §38.25-5 Removal of defective tanksTB/ALL. If a tank fails to pass the tests prescribed in this subpart, it shall be removed from service unless otherwise authorized by the Commandant. (a) The cargo tank safety relief valves shall be inspected at least once in every 2 years. (b) The safety relief valve discs must be lifted from their seats in the presence of a marine inspector by either liquid, gas, or vapor pressure at least once every 5 years to determine the accuracy of adjustment and, if necessary, must be reset. [CGFR 66-33, 31 FR 15269, Dec. 6, 1966, as amended by CGD 95-027, 61 FR 26000, May 23, 1996] 39.20-9 Tank barge liquid overfill protection-B/ALL. 39.20-11 Vapor overpressure and vacuum protection-TB/ALL. 39.20-13 High and low vapor pressure protection for tankships-T/ALL. Subpart 39.30-Operations 39.30-1 Operational requirements-TB/ALL. Subpart 39.40-Lightering and Topping-Off Operations with Vapor Balancing 39.40-1 General requirements for vapor balancing-TB/ALL. 39.40-3 Design and equipment for vapor balancing-TB/ALL. 39.40-5 Operational requirements for vapor balancing-TB/ALL. AUTHORITY: 33 U.S.C. 1231; 46 U.S.C. 3306, 3703, 3715(b); 45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46. SOURCE: CGD 88-102, 55 FR 25446, June 21, 1990, unless otherwise noted. Subpart 39.10-General § 39.10-1 Applicability-TB/ALL. (a) Except as specified by paragraph (c) of this section, this part applies to each tank vessel operating in the navigable waters of the United States, when collecting vapors of crude oil, gasoline blends, or benzene emitted from a vessel's cargo tanks through a vapor control system. (b) A tank vessel which transfers vapors of flammable or combustible cargoes other than crude oil, gasoline blends, or benzene, to a facility covered by 33 CFR part 154 must meet the requirements prescribed by the Commandant (G-MSO). (c) A tank vessel with an existing vapor collection system specifically approved by the Coast Guard for the collection of cargo vapor which was operating prior to July 23, 1990, is subject only to §39.30-1 and § 39.40–5 of this part as long as it transfers cargo vapor only to the specific facilities for which it was approved. (d) This part does not apply to the collection of vapors of liquefied flammable gases as defined in §30.10-39 of this subchapter. [CGD 88-102, 55 FR 25446, June 21, 1990, as amended by CGD 95-072, 60 FR 50462, Sept. 29, 1995; CGD 96-041, 61 FR 50727, Sept. 27, 1996] §39.10-3 Definitions-TB/ALL. As used in this part: Cargo deck area means that part of the weather deck that is directly over the cargo tanks. Existing vapor collection system means a vapor collection system which was operating prior to July 23, 1990. Facility vapor connection means the point in a facility's fixed vapor collection system where it connects with the vapor collection hose or the base of the vapor collection arm. Independent as applied to two systems means that one system will operate with a failure of any part of the other system except power sources and electrical feeder panels. Inerted means the oxygen content of the vapor space in a cargo tank is reduced to 8 percent by volume or less in accordance with the inert gas requirements of §32.53 or § 153.500 of this chapter. rate Maximum allowable transfer means the maximum volumetric rate at which a vessel may receive cargo or ballast. New vapor collection system means a vapor collection system which is not an existing vapor collection system. Service vessel means a vessel which transports bulk liquid cargo between a facility and another vessel. Topping-off operation means the transfer of a bulk liquid cargo from a service vessel to another vessel in order to load the receiving vessel to a deeper draft. Vapor balancing means the transfer of vapor displaced by incoming cargo from the tank of a vessel receiving cargo into a tank of the vessel or facility delivering cargo via a vapor collection system. Vapor collection system means an arrangement of piping and hoses used to collect vapor emitted from a vessel's cargo tanks and to transport the vapor to a vapor processing unit. Vapor control system means an arrangement of piping and equipment used to control vapor emissions collected from a vessel. It includes the vapor collection system and vapor processing unit. Vapor processing unit means the components of a vapor control system that recovers, destroys, or disperses vapor collected from a vessel. Vessel vapor connection means the point in a vessel's fixed vapor collection system where it connects with the vapor collection hose or arm. § 39.10-5 Incorporation by reference— TB/ALL. (a) Certain materials are incorporated by reference into this part with the approval of the Director of the FEDERAL REGISTER in accordance with 5 U.S.C. 552(a). To enforce any edition other than the one listed in paragraph (b) of this section, notice of change must be published in the FEDERAL REGISTER and the material made available to the public. All approved material is on file at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC and at the U.S. Coast Guard, Office of Operating and Environmental Standards (GMSO), 2100 Second Street, SW., Washington, DC 20593-0001, and is available from the sources indicated in paragraph (b) of this section. (b) The material approved for incorporation by reference in this part, and the sections affected are: American Petroleum Institute (API), API Standard 2000, Venting American National Standards Insti- ANSI B16.5, Steel Pipe Flanges and Flanged Fittings, 1981 American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 ASTM F1271-Standard Specification for Spill Valves for Use in Marine Tank Liquid Overpressure Protection Applications, December 29, 1989 International Electrotechnical Commission (IEC), Bureau Central de la Commission Electrotechnique Internationale, 1 rue de Varembe', Geneva, Switzerland IEC 309-1-Plugs, Socket-Outlets and Couplers for Industrial Purposes: Part 1, General Requirements, 1979 IEC 309-2-Plugs, Socket-Outlets and Couplers for Industrial Purposes: Part 2, Dimensional Interchange 39.20-11 39.20-1 39.20-9 39.20-9 39.20-9 39.20-9 (a) A person in charge of a transfer operation utilizing a vapor collection system must have completed a training program covering the particular system installed on the vessel. Training must include drills or demonstrations using the installed vapor control system covering normal operations and emergency procedures. (b) The training program required by paragraph (a) of this section must cover the following subjects: (1) Purpose of a vapor control system; (2) Principles of the vapor control system; (3) Components of the vapor control system; (4) Hazards associated with the vapor control system; (5) Coast Guard regulations in this part; (6) Operating procedures, including: (1) Testing and inspection requirements, (ii) Pre-transfer procedures, (iii) Connection sequence, (iv) Start-up procedures, and (v) Normal operations; and (7) Emergency procedures. [CGD 88-102, 55 FR 25446, June 21, 1990; 55 FR 39270, Sept. 26, 1990] §39.10-13 Submission of vapor control system designs-TB/ALL. (a) Plans, calculations, and specifications for a new vessel vapor collection system must be submitted to the Marine Safety Center for approval prior to installation. (b) An existing vapor collection system installation that has been Coast Guard approved to transfer cargo vapor to specific facilities must be reviewed and approved by the Marine Safety Center prior to transferring vapors to other facilities. (c) The owners/operators of a foreign flag vessel may submit certification by the classification society which classes the vessel that the vessel meets the requirements of this part as an alternative to meeting the requirements in paragraphs (a) and (b) of this section. (d) Upon satisfactory completion of plan review and inspection of the vapor collection system or receipt of the certification provided for in paragraph (d) of this section, the Officer in Charge, Marine Inspection, shall endorse the Certificate of Inspection for U.S. flag vessels, or the Certificate of Compliance for foreign flag vessels, that the vessel is acceptable for collecting the vapor from crude oil, gasoline blends, and benzene, or any other vapor it is found acceptable to collect. [CGD 88-102, 55 FR 25446, June 21, 1990, as amended by CGD 95-028, 62 FR 51200, Sept. 30, 1997] Subpart 39.20-Design and § 39.20-1 Vapor collection system—TB/ ALL (a) Each vapor collection system must meet the following requirements: (1) Except as allowed by paragraph (a)(3) of this section or the Commandant (G-MSO), vapor collection piping must be permanently installed, with the vessel's vapor connection located as close as practical to the loading manifold; (2) If the vessel collects vapors from incompatible cargoes simultaneously, it must keep the incompatible vapors separate throughout the entire vapor collection system; (3) A vessel certified to carry cargo listed in Table 151.05 of part 151 or Table 1 of part 153 of this chapter may have vapor connections located in the vicinity of each tank in order to preserve segregation of cargo systems, in lieu of common header piping; (4) A means must be provided to eliminate liquid condensate which may collect in the system, such as draining and collecting liquid from each low point in the line; (5) Vapor collection piping must be electrically bonded to the hull and must be electrically continuous; and (6) An inerted tankship must have a means to isolate the inert gas supply from the vapor collection system. The inert gas main isolation valve required by SOLAS 74, as amended, chapter II-2, Regulation 62.10.8 may be used to satisfy this requirement. (b) The vapor collection system must not interfere with the proper operation of the cargo tank venting system. (c) An isolation valve capable of manual operation must be provided at the vessel vapor connection. The valve must have an indicator to show clearly whether the valve is in the open or closed position, unless the valve position can be readily determined from the valve handle or valve stem. (d) The last 1.0 meter (3.3 feet) of vapor piping before the vessel vapor connection must be: (1) Painted red/yellow/red with: (i) The red bands 0.1 meter (0.33 feet) wide, and (ii) The middle yellow band 0.8 meter (2.64 feet) wide; and (2) Labeled “VAPOR” in black letters at least 50 millimeters (2 inches) high. (e) Each vessel vapor connection flange must have a permanently attached 0.5 inch diameter stud at least 1.0 inch long projecting outward from the flange face. The stud must be 10cated at the top of the flange, midway between bolt holes, and in line with the bolt hole pattern. (f) Each hose used for transferring vapors must: |