On Feb. 27, 2021, the Pennsylvania Department of Environmental Protection (PADEP) published the final revision to the technical guidance document (TGD) No. 562-4180-306, titled "Civil Penalty Assessments for Coal Mining Operations," 51 Pa.B. 1083 (Feb. 27, 2021). The previous version of the TGD was last updated in 2005. The PADEP first published draft revisions to the TGD on May 4, 2019, and subsequently re-published an updated draft on Oct. 3, 2020 because substantial changes were made in response to public comments.