Arizona Revised Statutes Title 13. Criminal Code § 13-3103. Misconduct involving explosives; classification

1. Keeping or storing a greater quantity than fifty pounds of explosives in or upon any building or premises within a distance of one-half mile of the exterior limits of a city or town, except in vessels, railroad cars or vehicles receiving and keeping them in the course of and for the purpose of transportation; or

2. Keeping or storing percussion caps or any blasting powder within two hundred feet of a building or premises where explosives are kept or stored; or

3. Selling, transporting or possessing explosives without having plainly marked, in a conspicuous place on the box or package containing the explosive, its name, explosive character and date of manufacture.

4. This section shall not apply to any person who legally keeps, stores or transports explosives, percussion caps or blasting powder as a part of their business.