43 CFR 4770.1: Prohibited acts.

The following acts are prohibited:

(a) Maliciously or negligently injuring or harassing a wild horse or burro;

(b) Removing or attempting to remove a wild horse or burro from the public lands without authorization from the authorized officer;

(c) Destroying a wild horse or burro without authorization from the authorized officer except as an act of mercy;

(d) Selling or attempting to sell, directly or indirectly, a wild horse or burro or its remains;

(e) Commercially exploiting a wild horse or burro;

(f) Treating a wild horse or burro inhumanely;

(g) Violating a term or condition of the Private Maintenance and Care Agreement;

(h) Branding a wild horse or burro;

(i) Removing or altering a freeze mark on a wild horse or burro;

(j) Violating an order, term, or condition established by the authorized officer under this part.