43 C.F.R. § 2804.40
If you are unable to meet any of the application requirements in this subpart, you may request approval for an alternative requirement from the BLM. Any such request is not approved until you receive BLM approval in writing. Your request to the BLM must:
[81 FR 92212, Dec. 19, 2016, as amended at 89 FR 35679, May 1, 2024]