43 CFR § 3715.4-1
What happens after I give BLM written notification of my existing occupancy?
June 11, 2020
(a) BLM will visit your site during the normal course of inspection to obtain the information described in §3715.3-2. After the visit, BLM will make a determination of concurrence or non-concurrence.
(b) You must provide the information described in §3715.3-2 to BLM. You may provide it either in writing or verbally during a site visit by BLM field staff.