Low-pressure gas systems handle gases at pressures below 15 psig, used for various industrial, commercial, and residential applications. Regulatory agencies like the EPA, PHMSA, and NFPA establish safety standards, while organizations like AGA and CGA promote industry best practices. Leading manufacturers such as Emerson and Swagelok provide high-quality equipment, while engineering firms like Jacobs offer expertise in project design and compliance management. Classification societies ensure vessel and equipment compliance, and certification bodies like UL verify safety requirements.