27 CAR § 111-1504
(a) Forestry machinery.
(a) Forestry machinery shall be exempt from the width and height limitations imposed by this subchapter, and all other statutes limiting the width and height of vehicles operating upon the state's highways. (b) This section shall have no application to forest machinery traveling on federal interstate highways.
(b) Log truck exemption.
(1) A truck-tractor/pole trailer combination with a total number of five (5) axles, no more and no less, transporting logs from their first point of severance to the location where they first undergo preparation for processing or processing is not required to have a permit under the following conditions:
(c) Farm equipment/special cargoes. Pursuant to Arkansas Code § 27-35-210, it shall not be necessary to obtain a permit nor shall it be unlawful to move any vehicle or machinery in excess of the maximum width prescribed in Arkansas Code § 27-35-206 used for normal farm purposes only, such as, but not limited to, hay harvesting equipment, plows, tractors, bulldozers, combines, etc., where:
(d) Round bales of hay.
(2)
(e) Compacted seed cotton vehicles.
(f) Poles, pipes, machinery, or objects of a structural nature.
(2) Specific examples are as follows: