1.1 This standard defines the requirements for the design, manufacture, inspection and testing of cargo tank shell mounted with bottom-loading and vapor-recovery systems. Inspection, testing and periodic maintenance requirements are also covered. 1.2 This standard shall not apply to cryogenic, LPG, chemical tank vehicles, aircraft refuelers, reduced crude, fuel oil and asphalt tank truck / tank trailer shells. 1.3 This standard shall cover the following: • One product, single compartment cargo tank . • Two or more product, two or more compartment cargo tank for hauling products of different groups of classification (This item shall be subject to the loading facility approval prior to fabrication to ensure the compatibility). A single compartment cargo tank is considered as a BASE LINE design. Manufacture or purchase of two or more compartment cargo tanks is OPTIONAL and not a mandatory requirement. 1.4 This standard shall apply to all bottom-loading tank truck / tank trailer vehicles licensed for service in the GCC States. 1.5 This standard does not cover trailer frame components including chassis frame, suspension system, trailer brake system, wheels, air supply reservoir, and other trailer components.