National Fire Protection Association 30 - Prevent Spillage
NFPA 30 6.9.2 prevent spillage of flammable and combustible liquids
Maintenance and operating practices shall be established and implemented to control leakage and prevent spillage of flammable and combustible liquids.
Please consult your local authority having jurisdiction with your questions and for guidance in conforming to laws as they apply to your application. This is only meant for a reference and does not imply a warranty.