In all gaseous mines, as defined in section 1563.02 of the Revised Code, no black powder shall be used for blasting coal and all shots shall be fired by a shot firer.No owner, lessee, agent, or operator of a mine shall violate this section.
Use of black powder
Ohio Rev. Code Ann. § 1567.22, under Chapter 1567 | Mine Equipment; Safety Provisions.
Ohio Rev. Code Ann. § 1567.22