1. I. Except as provided in paragraph II, any person who shall drive or cause to be driven on the ways of this state a vehicle whose weight is in excess of that prescribed in this subdivision shall be guilty of a violation, and notwithstanding the provisions of RSA 625:9, V, shall be fined $100 plus penalty assessment for a first offense and $250 plus penalty assessment for a subsequent offense within a 12-month period.
2. II. Any person who shall drive or cause to be driven on the ways of this state a vehicle whose weight is in excess of that prescribed in RSA 266:18-a, or RSA 266:18-b shall be fined $100 or $.02 for each pound in excess of the prescribed weight, whichever is the greater, for a first offense; $250 or $.02 per pound in excess of the prescribed weight, whichever is greater, for a second offense; for a third and subsequent offense of the same vehicle in violation of this section, $250 or $.02 per pound in excess of the prescribed weight, whichever is greater, up to an excess of 15,000 pounds; when the excess is more than 15,000 pounds and less than 30,000 pounds, $.03 per pound; and when the excess is more than 30,000 pounds, $.04 per pound. The fines in this paragraph shall be plus penalty assessment.
3. III. Any person who shall drive or cause to be driven on any interstate and defense highway of this state a vehicle whose weight is in excess of that prescribed in RSA 266:18 shall be subject to the fine in paragraph I.
4. IV. Notwithstanding RSA 234:39-a, any person who shall drive or cause to be driven on a bridge of this state a vehicle whose weight is in excess of the posted or annually published caution crossing limit for that particular bridge shall be fined $200 plus penalty assessment.
5. V. Notwithstanding RSA 234:39-a, any person who shall drive or cause to be driven on a bridge of this state a vehicle whose weight exceeds the limit of an excluded bridge (or bridge posted for no trucks) may be fined $400 plus penalty assessment.
6. VI. All fines and certification fees collected pursuant to this section, RSA 260:42, RSA 260:52, RSA 260:55, RSA 265:118, RSA 266:16, RSA 266:26, RSA 266:59-c, and RSA 266:63 through 266:72-a shall accrue to the highway fund.

Source. 1921, 119:25. PL 103:28. 1939, 102:1. RL 119:40. 1949, 85:2. RSA 263:69. 1973, 529:52. 1978, 16:2. 1979, 358:5, III. 1981, 146:1. 1986, 121:4. 1998, 207:4, eff. June 18, 1998. 2015, 202:11, eff. Jan. 1, 2016. 2024, 135:4, eff. Jan. 1, 2025.