43 CFR § 3279.10
When may I request a variance from BLM requirements pertaining to utilization operations?
June 11, 2020
(a) You may file a request with BLM for a variance for your approved utilization operations from the requirements of §3200.4. Your request must include enough information to explain:
(1) Why you cannot comply with the requirements; and
(2) Why you need the variance to operate your facility, conserve natural resources, or protect public health and safety, property, or the environment.
(b) We may approve your request orally or in writing. If we give you oral approval, we will follow up with written confirmation.