这些要求包括与液化石油气设备一起使用的压力调节器。根据以下标准，这些要求涵盖的调节器适用于非制冷系统:液化石油气规范（国家消防规范，第2卷）NFPA 58；国家燃气规范（IAS/A.G.A.Z223.1），NFPA 54；户外燃气灶具，IAS/A.G.A.Z21。58; 《休闲车标准》（RVIAA119.2）（国家消防规范，第7卷），NFPA 501C。这些要求不包括:压缩气体调节器；燃气器具压力调节器；用于化工、石油或公用事业发电厂的调节器； 管道或海运码头；或此类工厂或码头的相关储存设施；燃气器具用组合式燃气控制阀；用于氧气燃料、气焊和切割操作的调节器；用于发动机燃料（汽车和/或船舶）应用的调节器。

These requirements cover pressure regulators for use with LP-Gas equipment.Regulators covered by these requirements are intended for use in non-refrigerated systems in accordance with the following standards:Liquefied Petroleum Gas Code, (National Fire Codes, Vol. 2) NFPA 58;National Fuel Gas Code (IAS/A.G.A. Z223.1), NFPA 54;Outdoor Cooking Gas Appliances, IAS/A.G.A. Z21.58; andStandard on Recreational Vehicles (RVIAA119.2) (National Fire Codes, Vol. 7), NFPA 501C.These requirements do not cover:Compressed gas regulators;Gas appliance pressure regulators;Regulators for use in chemical, petroleum, or utility power plants; pipeline or marine terminals; or related storage facilities at such plants or terminals;Combination gas control valves for gas appliances;Regulators for use in oxygen-fuel, gas-welding, and cutting operations; andRegulators for use in engine fuel (automotive and/or marine) applications.