This present Code has been developed for the design, construction & operation of offshore support vessels (OSVs) which transport hazardous & noxious liquid substances in bulk for the servicing & resupplying of offshore platforms, mobile offshore drilling units & other offshore installations, including those employed in the search for & recovery of hydrocarbons from the seabed. The basic philosophy of the present Code is to apply standards contained in the Code & the International Code for the Construction & Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code) & in the International Code for the Construction & Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) to the extent that is practicable & reasonable taking into account the unique design features & service characteristics of OSVs.