25 Pa. Code § 283.110
An application shall contain a contingency plan consistent with § § 283.251—283.253 (relating to emergency procedures). The plan shall include a Preparedness, Prevention and Contingency (PPC) Plan that is consistent with the Department’s most recent guidelines for the development and implementation of PPC plans.
This section cited in 25 Pa. Code § 284.310 (relating to application requirements).