Rules for aboveground storage tanks (AST) and underground storage tanks (UST).
For areas outside of approved cabinets or warehouses, quantities are often limited to 25 gallons for Class IA liquids. nfpa 30 ppt
NFPA 30 is widely adopted by OSHA as a reference for fire safety and prevention in the workplace. Employers are required to comply with OSHA regulations, including 29 CFR 1910.106, which references NFPA 30 for requirements on handling and storage of flammable and combustible liquids. Rules for aboveground storage tanks (AST) and underground