5003.11.3.9 Aisles.

Aisles 4 feet (1219 mm) in width shall be maintained on three sides of the storage or display area.

5003.11.3.10 Signs.

Hazard identification signs shall be provided in accordance with FC 5003.5.

5003.12 Outdoor control areas.

Outdoor control areas for hazardous materials in amounts not exceeding the maximum allowable quantity per outdoor control area shall be in compliance with the following requirements:

   1.   Outdoor control area shall be kept free from vegetation, rubbish and other combustible waste, and combustible materials not necessary to the storage. The area surrounding an outdoor control area shall be kept clear of such materials for a minimum of 15 feet (4572 mm).

   2.   Outdoor control areas shall be located at least 5 feet (1524 mm) from a building opening and at least 15 feet (4572 mm) from Group A occupancies. Outdoor control areas shall be located at least 20 feet (6096 mm) from a lot line, public street or private road.

      Exception: A 2-hour fire-resistance-rated wall without openings extending not less than 30 inches (762 mm) above and to the sides of the storage area is allowed in lieu of such distances required from a building opening, lot line, public street or private road.

   3.   Where a property exceeds 10,000 square feet (929 m2), there may be two outdoor control areas separated by a minimum distance of 50 feet (15 240 mm), when approved.

   4.   Where a property exceeds 35,000 square feet (3252 m2), there may be multiple outdoor control areas, separated a minimum distance of 50 feet (15 240 mm), when approved.

Section FC 5004: Storage

5004.1 General.

Hazardous materials in amounts exceeding the maximum allowable quantity per control area as set forth in FC 5003.1 shall be stored in accordance with FC 5001, 5003 and 5004. Hazardous materials in amounts not exceeding the maximum allowable quantity per control area as set forth in FC 5003.1 shall be stored in accordance with FC 5001 and 5003. Nonflammable solid and nonflammable and noncombustible liquid hazardous materials in Group M retail occupancies and Group S wholesale storage shall be stored and displayed in accordance with FC 5003.11.

5004.2 Spill control and secondary containment for liquid and solid hazardous materials.

Buildings, structures, rooms or areas used for the storage of liquid or solid hazardous materials shall be provided with spill control and secondary containment in accordance with FC 5004.2.1 through 5004.2.3.

   Exception: Outdoor storage of containers on approved containment pallets in accordance with FC 5004.2.3.

5004.2.1 Spill control for hazardous material liquids.

Buildings, structures, rooms or areas used for the storage of hazardous material liquids in individual vessels having a capacity of more than 55 gallons (208 L), or in which the aggregate capacity of multiple vessels exceeds 1,000 gallons (3785 L), shall be provided with spill control to prevent the flow of liquids to adjoining areas. Floors in indoor locations, and similar surfaces in outdoor locations, shall be designed to contain a spill from the largest single vessel by one of the following methods:

   1.   Liquid-tight sloped or recessed floors in indoor locations or similar protection in outdoor locations.

   2.   Liquid-tight floors and raised or recessed sills or dikes in indoor locations or similar protection in outdoor locations.

   3.   Sumps and collection systems.

   4.   Other approved engineered systems.