Scope and Application (2017) This Guide is for optional application to ship types other than those falling under the scope of the International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) and the ABS requirements under Part 5C@ Chapter 8 of the ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules) and burning their cargo. It is applied to vessels burning conventional fuels but having design features suitable to permit conversion at a future date to a particular gas burning concept based on existing Class requirements for gas fueled ships.