43 CFR § 3271.12
What do I need to start preliminary site investigations that may disturb the surface?
June 11, 2020
(a) You must:
(1) Fully describe your proposed operations in a Sundry Notice; and
(2) File a bond meeting the requirements of either §3251.14 or §3273.19. See subparts 3214 and 3215 for additional details on bonding procedures.
(b) Do not begin the site investigation or surface disturbing activity until BLM approves your Sundry Notice and bond.