WAC 296-52-70015. Igloos, army-type structures, tunnels, and dugouts

These storage facilities must: (1) Be constructed of reinforced concrete, masonry, metal, or a combination of these materials. (2) Have an earth mound covering of at least twenty-four inches on the top, sides, and rear unless the magazine meets the requirements of WAC 296-52-70010 (4)(b), Building construction for roofs. (3) Have interior walls and floors covered with a nonsparking material. (4) Be constructed according to the requirements of WAC 296-52-70005 , Type 1 magazines: Permanent storage facilities, through WAC 296-52-70060 construction.