No person shall, whether working for himself or in the employ of another, while loading or charging a hole with explosives, use or employ a metal tamping bar, nor shall any person allow or permit the use of a metal tamping bar while loading or charging a hole by employees under his management or direction.
Use of tamping bar
A.R.S. § 27-325 — under Explosives and Blasting.
A.R.S. § 27-325