Transportation

SB 559 lowers the minimum speed limit on locally controlled roads from 25 mph to 20 mph in certain areas, including outside urban districts and within business or urban residential zones. Local authorities must base any speed limit reduction on engineering or traffic studies before implementing it. The bill does not require new funding or change existing enforcement, as it only modifies the minimum limit threshold in state law. This affects municipalities and town officials responsible for setting speed limits on local roads.

HB 1178 allows vehicle owners in New Hampshire to install aftermarket tinting on front side windows (left and right of the driver) if the tint permits at least 35% of light to pass through. It also creates a medical exemption, enabling individuals with qualifying health conditions to apply for a waiver permitting darker tint, provided they submit medical certification from a licensed provider and the tint still meets the 35% standard. The commissioner of safety will establish testing procedures and review waiver applications, including consulting a medical review board if needed. The law takes effect January 1, 2027.