Working floors in square-set stopes shall be lagged closely and securely, and open sets shall be equipped with guardrails.
4 Va. Admin. Code § 25-40-3780
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.
Working floors in square-set stopes shall be lagged closely and securely, and open sets shall be equipped with guardrails.
4 Va. Admin. Code § 25-40-3780
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.