Maryland Code, TRANSPORTATION 13-924
(b) On application, the Administration shall issue a Class F “farm truck tractor” registration to any applicant who certifies:
(1) That the applicant is a farmer; and
(2) That the vehicle for which the application is made is a farm truck tractor, specifying its proposed use.
(c) For each farm truck tractor the annual registration fee is based on the maximum gross weight of the vehicle in combination with a trailer or semitrailer, as follows:
Maximum Gross Weight Fee (per 1,000 Pounds
Limit (in Pounds) or Fraction Thereof)
40,000 (minimum)
80,000 (maximum) $5.25
(d) A vehicle registered under this section may not be used for hire except to haul farm products for another farmer.
(e) A vehicle registered under this section may not be used in any manner other than as a farm truck tractor.