National Historic Preservation Act (NHPA) Section 106 and Oil and Gas Permitting Washington Office Instruction Memorandum No.2005-227, August 31, 2005 This instruction memorandum (IM) transmits the approved recommendations of the task Force on the NHPA Section 106 and Applications for Permit to Drill (APDs).
NTL-MSO-1-85 - Cultural Resource Surveys This Notice provides guidelines to lessees/operators when they are required to conduct cultural resource surveys on Federal and Indian lands in the Montana/Dakotas.