25 C.F.R. § 166.315
Who is responsible for the completion and maintenance of a conservation practice if the permit expires or is canceled before the completion of the conservation practice?
Prior to undertaking a conservation practice, the BIA, landowner, and permittee will negotiate who will complete and maintain a conservation practice if the permit expires or is canceled before the conservation practice is completed. That conservation practice agreement will be reflected in the conservation plan and permit.