California Code of Regulations
Title 19 - Public Safety
Division 1 - State Fire Marshal
Chapter 10 - Explosives
Subchapter 5 - Construction
Article 15 - Construction of Class II Magazines
Section 1578.1 - Construction Materials
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
Class II magazines shall be constructed as follows:
(a) Two inch nominal thickness hardwood, covered on the exterior with a minimum of No. 20 Manufacturers Standard Gage Steel, or,
(b) Two thicknesses of 1 inch thick plywood, covered on the exterior with a minimum of No. 20 Manufacturers Standard Gage Steel, or,
(c) Fiber, equal in strength to the wood as specified in Sections 1578.1(a) and 1578.1(b), covered on the exterior with a minimum of No. 20 Manufacturers Standard Gage Steel, or,
(d) A minimum of No. 14 Manufacturers Standard Gage Steel, lined on the interior with 1 layer of 1 inch thick plywood, or equivalent material.
All corners of Class II magazines shall be provided with substantial bracing or shall be of rabbeted joint construction. The interior shall have a smooth finish without cracks or crevices with all nails, screws, bolts and nuts countersunk. Exposed metal shall be covered so as not to come into contact with packages of explosives.