Section 154.705 - Cargo boil-off as fuel: General(a) Each cargo boil-off fuel system under § 154.703(c) must meet §§ 154.706 through 154.709 .(b) The piping in the cargo boil-off fuel system must have a connection for introducing inert gas and for gas freeing the piping in the machinery space.(c) A gas fired main propulsion boiler or combustion engine must have a fuel oil fired pilot that maintains fuel flow as required under § 154.1854 if the gas fuel supply is cut-off.