Ariz. Admin. Code § 11-1-1840
Current through Register Vol. 31, No. 2, January 10, 2025
Entries or rooms shall not be started off entries beyond the last open crosscuts, except that room necks and entries not to exceed 18 feet in depth may be turned off entries beyond the last open crosscuts if such room necks or entries are kept free of accumulations of flammable gas by use of line brattice or other adequate means.
Ariz. Admin. Code § R11-1-1840