Ariz. Admin. Code § 11-1-1832
Current through Register Vol. 30, No. 50, December 13, 2024
Seals shall be of substantial construction. Exposed surfaces shall be made of fire-resistant material such as gunite-covered wood or material, asbestos sheeting, masonry, concrete or reinforced concrete, and steel or covered steel. If a commodity mined is combustible, seals should be made of incombustible material.
Ariz. Admin. Code § R11-1-1832