Maryland Code, TRANSPORTATION 13-927
(2) A Class G (trailer) vehicle shall be classified as “freight” or “nonfreight”.
(b) A nonfreight trailer or semitrailer is a vehicle designed for towing by a Class A (passenger) vehicle, a Class M (multipurpose) vehicle, or a Class E (truck) vehicle, and shall:
(1) (i) If towed by a Class E (truck) vehicle, have a gross weight of 20,000 pounds or less; or
(ii) If towed by a Class A (passenger) vehicle or a Class M (multipurpose) vehicle, have a gross weight of 10,000 pounds or less; and
(2) Be a:
(i) Boat trailer;
(ii) Camping trailer;
(iii) Travel trailer;
(iv) House trailer; or
(v) Utility trailer.
(c) A freight trailer or semitrailer shall be:
(1) Designed for towing by a Class E (truck) or Class F (tractor) vehicle; and
(2) (i) In excess of 20,000 pounds gross weight if towed by a Class E (truck) vehicle; or
(ii) In excess of 10,000 pounds gross weight if towed by a Class F (tractor) vehicle.
(d) The annual registration fee for a Class G (trailer) vehicle is based on the maximum gross weight as follows:
(1) Except as provided in paragraph (2) of this subsection, for a nonfreight trailer or semitrailer:
Maximum Gross Weight
Limit (in Pounds) Fee
3,000 or less $ 25.50
3,001 to 5,000 51.00
5,001 to 10,000 80.00
10,001 to 20,000 124.00
(2) For a nonfreight trailer or semitrailer with a maximum gross weight limit (in pounds) of 10,001 to 20,000 that is titled on or after October 1, 2005:
(i) The fee is $124.00; and
(ii) The vehicle shall be registered in one of the following weight ranges:
Maximum Gross Weight
Limit (in Pounds)
10,001 to 11,000
11,001 to 12,000
12,001 to 13,000
13,001 to 14,000
14,001 to 15,000
15,001 to 16,000
16,001 to 17,000
17,001 to 18,000
18,001 to 19,000
19,001 to 20,000
(3) For a freight trailer or semitrailer the fee is $38.25.