43 CFR § 3505.55
What are my obligations to BLM under an approved prospecting permit?
June 11, 2020
You must:
(a) Pay your annual rental in a timely fashion. See §§3504.15 and 3504.16 of this part;
(b) Comply with all permit terms and stipulations the surface management agency attached to the permit;
(c) Conduct only those exploration activities approved as part of your existing exploration plan; and
(d) Discontinue activities following expiration of the initial term unless and until BLM extends your permit.