43 C.F.R. § 4120.3-5
The authorized officer shall not approve the transfer of a grazing preference under § 4110.2-3 of this title or approve use by the transferee of existing range improvements, unless the transferee has agreed to compensate the transferor for his/her interest in the authorized improvements within the allotment as of the date of the transfer.
[53 FR 10234, Mar. 29, 1988]