When mechanical haulage is in an underground mine, the tracks, roadbeds, rails, joints, switches and frogs shall be constructed, installed, bonded and maintained in a manner consistent with the speed and type of haulage operation being conducted.
A.R.S. § 27-349
Tracks and roadbeds; maintenance underground
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.