Specifies requirements for the location, design, construction, commissioning and operation of installation for the storage and handling of LP gas. Separate sections deal with above-ground and underground storage tanks, cylinder supply systems, cylinder filling, automotive filling installations and procedures for a wide variety of operations necessary on or in conjunction with an installation. Appendices cover filling levels, markings, safety valves, locations, line identification, leakage testing, hazardous areas, space heaters, decanting procedures, emergency plans, refuelling, fire protection, and driver instruction signs.