58 Pa. Stat. § 601.211
Whenever provision is made in this act for adoption of regulatory requirements for casing, plugging or equipping a well, a well operator may request the authority to use an alternative method of material by filing an application with the department, describing such proposed alternative method or material, in reasonable detail, indicating the manner in which it will accomplish the goals of this act and regulations adopted pursuant hereto. Notice of filing of any such application shall be given by the well operator by certified mail to any coal operator or operators affected. Any such coal operator may, within 15 days following such notice, file objections to such proposed alternative method or material. If no objections are filed within said 15-day period and if none is raised by the department, the department shall forthwith make a determination whether to allow the use of the proposed alternative method or material.
58 P.S. § 601.211