New Hampshire Code of Administrative Rules
Saf - Department of Safety
Subtitle Saf-C - Commissioner, Department of Safety
Chapter Saf-C 500 - VEHICLE REGISTRATION RULES
Part Saf-C 511 - RENEWAL REGISTRATION
Section Saf-C 511.07 - Weight Increase

(a) A registrant who has been referred to the department by a law enforcement officer as a result of violating RSA 266:26, and who applies for a registration with increased weight shall, upon payment of the statutory fee, be issued a corrected certificate of registration. The registration fee for the increased weight shall be computed retroactively to the first month of the registrant's current registration. The registrant shall be responsible for not carrying on the vehicle an amount in excess of the manufacturer's rated carrying capacity of the vehicle. A request for increased weight registration shall be submitted, in person to a substation or authorized municipal agent or, in person or by mail, to:

The Division of Motor Vehicles

23 Hazen Drive

Concord, N.H. 03305.

(b) If an applicant is able to prove to the commissioner that the vehicle has been structurally altered to carry a heavier gross weight than at the time of current registration, the weight increase shall be computed retroactively to the date of alteration of the vehicle.

(c) A registrant who applies for registration at an increased weight, other than (a) above, shall, upon payment of the statutory fee, be issued a corrected certificate of registration. The registration fee for the increased weight shall be computed as of the date of application for increased weight. A request for increased weight registration shall be submitted, along with the vehicle's previous valid certificate of registration, in person to a substation, authorized DMV agent or, in person or by mail, to:

The Division of Motor Vehicles

23 Hazen Drive

Concord, N.H. 03305.

(d) If a vehicle, after being weighed by any law enforcement officer, is found to be carrying a gross weight in excess by more than 20% of the total weight under which it was registered, the finding shall be considered prima facie evidence that the registrant of the vehicle did not pay the proper fee and register the vehicle for the proper amount of weight.

(e) If any person fails to increase the registered weight of their vehicle as provided by this section, and pay the required fee, the registration and plates of the vehicle shall be suspended by the commissioner, after notice and opportunity for a hearing in accordance with Saf-C 204.19.

(f) The registrant shall ensure that a vehicle is not registered at a weight in excess of the weight allowed under RSA 266: 18, or a greater weight if special modifications have been made and the increase has been approved by the commissioner. No refund of any excess fee shall be approved under circumstances in which a vehicle was registered at a greater weight unless the registrant provides proof that the vehicle was registered due to an error on the part of the department or a clerk, and that the vehicle has not been operated at a weight in excess of the weight allowed by law.