National Fire Protection Association 30 - Spill Containment
NFPA 30 19.3 Containment, Drainage, and Spill Control
9.13.1 Storage areas shall be designed and operated to pre- vent the discharge of liquids to public waterways, public sewers, or adjoining property, unless such discharge has been specifically approved.
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.