Modifying a Permit | Midpage166.227How can Indian land be removed from an existing permit?166.228How will the BIA provide notice if Indian land is removed from an existing permit?166.229Other than to remove land, how can a permit be amended, assigned, subpermitted, or mortgaged?166.230When will a BIA decision to approve an amendment, assignment, subpermit, or mortgage under a permit be effective?166.231Must an amendment, assignment, subpermit, or mortgage approved under a permit be recorded?