All topsoil and, if necessary, suitable subsoil shall be separately removed, segregated, conserved and redistributed on areas affected by the surface mining activities.
25 Pa. Code § 87.96
This section cited in 25 Pa. Code § 87.68 (relating to reclamation information); 25 Pa. Code § 87.131 (relating to disposal of excess spoil); and 25 Pa. Code § 87.166 (relating to haul roads and access roads: restoration).