16.9.1 If acceptable to the Administration, other
cargo gases may be used as fuel, providing that the same level of
safety as natural gas in this Code is ensured.
16.9.2 The use of cargoes identified as toxic
products shall not be permitted.
16.9.3 For cargoes other than LNG, the fuel supply
system shall comply with the requirements of 16.4.1, 16.4.2, 16.4.3
and 16.5, as applicable, and shall include means for preventing condensation
of vapour in the system.
16.9.4 Liquefied gas fuel supply systems shall
comply with 16.4.5.
16.9.5 In addition to the requirements of 16.4.3.2,
both ventilation inlet and outlet shall be in a non-hazardous area
external to the machinery space.