43 C.F.R. § 2932.11

(a) Except as provided in § 2932.12, you must obtain a Special Recreation Permit for:

(1) Commercial use, including vending associated with recreational use; or

(2) Competitive use.

(b) If BLM determines that it is necessary, based on planning decisions, resource concerns, potential user conflicts, or public health and safety, we may require you to obtain a Special Recreation Permit for—

(1) Recreational use of special areas;

(2) Noncommercial, noncompetitive, organized group activities or events; or

(3) Academic, educational, scientific, or research uses that involve:

(i) Means of access or activities normally associated with recreation;

(ii) Use of areas where recreation use is allocated; or

(iii) Use of special areas.