Ariz. Admin. Code § 11-1-1836
Current through Register Vol. 30, No. 50, December 13, 2024
Line brattice or other suitable devices shall be installed from the last open crosscut to a point near the face to assure positive air flow to the face of every active underground working place, unless the Inspector or his authorized representative permits an exception to this requirement.
Ariz. Admin. Code § R11-1-1836