46 C.F.R. § 154.707 Cargo boil-off as fuel: Ventilation.
Title 46 - Shipping
(a) A ventilation hood or casing must be installed in areas occupied by flanges, valves, and piping at the fuel burner to cause air to sweep across them and be exhausted at the top of the hood or casing. (b) The hood or casing must be mechanically exhaust-ventilated and meet §154.1205. (c) The ventilated hood or casing must have an airflow rate specially approved by the Commandant.
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo Pressure and Temperature Control
§ 154.707 Cargo boil-off as fuel: Ventilation.
