36 CFR § 261.6 - Timber and other forest products.
The following are prohibited:
(c) Removing any timber or other forest product cut under permit or timber sale contract, except to a place designated for scaling, or removing it from that place before it is scaled, measured, counted, or otherwise accounted for by a forest officer.
(d) Stamping, marking with paint, or otherwise identifying any tree or other forest product in a manner similar to that employed by forest officers to mark or designate a tree or any other forest product for cutting or removal.
(f) Selling or exchanging any timber or other forest product obtained under free use pursuant to §§ 223.5 through 223.11.
(g) Violating any timber export or substitution restriction in §§ 223.160 through 223.164.
(h) Removing any timber, tree or other forest product, except as authorized by a special-use authorization, timber sale contract, or Federal law or regulation.
(i) Violating the Forest Resources Conservation and Shortage Relief Act of 1990 (16 U.S.C. 620, et seq.), or its implementing regulations at 36 CFR 223.185-223.203.