Wyoming Regulatory Program

We are issuing a final decision on an amendment to the Wyoming regulatory program (the "Wyoming program") under the Surface Mining Control and Reclamation Act of 1977 ("SMCRA" or "the Act"). Our decision approves in part, disapproves in part and defers in part the amendment. Wyoming proposed to amend Chapters 1, 2, 4, 5, and Appendix A of the Land Quality Division (LQD) Coal Rules and Regulations to address required program amendments and other deficiencies identified by OSMRE, and to improve and clarify rules relating to requirements for vegetation measurements and performance standards. Specifically, the proposed changes clarify baseline vegetation requirements and revegetation reclamation plan requirements, clarify revegetation success standards and codify normal husbandry practices, reorganize and clarify species diversity and shrub density requirements, and revise and add definitions supporting those proposed changes. Wyoming also proposed changes to its rules in Chapters 2, 4, and 5 regarding cultural and historic resources, prime farmland, siltation structures and impoundments, and operator information. Wyoming revised its program to be consistent with the corresponding Federal regulations and SMCRA, clarify ambiguities, and improve operational efficiency.