1.1.1 These Interim Guidelines apply to internal
combustion engine installations in ships using natural gas as fuel.
The engines may use either a single fuel (gas) or dual fuel (gas and
oil fuel), and the gas may be stored in gaseous or liquid state.
1.1.2 These Interim Guidelines should be applied
in addition to the relevant provisions of the International Convention
for the Safety of Life at Sea (SOLAS), 1974
and the Protocol of 1988 relating thereto, as amended.
1.1.3 The Interim Guidelines are applicable to
new ships. Application to existing ships should be decided by the
Administration to the extent it deems necessary.