The exemptions are commodities, city limits and wreckers
The prohibition points at the Alabama Motor Carrier Act’s exemptions rather than listing them, so the natural question is whether one of them is a size exemption. The Commission’s own chapter enumerates the exemptions it administers across three rules, and none of them is.
The first is geographic. Rule 770-X-10-.02-.01, Contiguous Municipalities, provides that a motor vehicle for hire is within the Commission’s jurisdiction, and outside the statutory exemption, if it transports for compensation from within the corporate limits or police jurisdiction of one municipality to a point in another whose limits or police jurisdiction do not join and are not contiguous with the first, “or if the transportation originates or terminates outside the corporate limits or police jurisdiction of any municipality.” The second half of that sentence is the one that catches most of this work: a pickup at a plant on a county road is outside every municipality, and the exemption is unavailable regardless of distance.
The second is commodity. Rule 770-X-10-.02-.02, Exempt Commodities, lists what the Act exempts from the Commission’s jurisdiction, and the list is agricultural and raw-material in character: milk, livestock, coal, coke, logs, lumber, cotton in bales, cottonseed, liquid or dry fertilizer, poles, pulpwood, United States mail, newspapers, magazines, peanuts, potatoes, and any other agricultural commodity “but not manufactured products thereof.” The rule then records Attorney General opinions resolving borderline cases — plywood and particleboard not exempt, creosoted poles not exempt, sulfuric acid not exempt, pulpwood chips exempt, liquid nitrate of ammonia exempt if to be used as a fertilizer.
The third is a service class. Rule 770-X-10-.02-.03 removes wrecker service from the Commission’s jurisdiction — towing wrecked or disabled vehicles, abandoned, stolen, repossessed or replacement vehicles, wrecked or disabled trailers or mobile homes, and other traditional wrecker service.
Three exemptions, three axes, and not one of them is a weight. The general freight this equipment carries is manufactured product, which the commodity list expressly excludes at its own margin, and the geography of the work rarely stays inside a single set of municipal limits. The exemptions are not written with this operation in mind and they do not reach it.