This bill amends Montana's speed limit laws by increasing the speed limits for vehicles on national highways that have been expanded to four lanes. Specifically, it establishes a new speed limit of 75 miles an hour during the daytime and 70 miles an hour during the nighttime for these highways, provided they are not subject to a permanent special speed zone. The bill also maintains existing speed limits for interstate highways and other public highways, while allowing for a 10-mile-per-hour increase in speed for overtaking and passing on two-lane roads. Additionally, the bill revises penalties for speed limit violations. It includes an amendment to specify that violations of the new speed limits on expanded national highways will be treated similarly to existing violations, with fines structured based on the amount by which the speed limit is exceeded. Importantly, the bill stipulates that minor violations (exceeding the speed limit by no more than 10 miles per hour during the daytime or 5 miles per hour during the nighttime) will not be recorded against a driver's record or affect insurance premiums, except in cases of excessive speeding.

Statutes affected:
LC Text: 61-8-303, 61-8-725
HB0312_1(1): 61-8-303, 61-8-725
HB0312_1(2): 61-8-303, 61-8-725
HB0312_1(3): 61-8-303, 61-8-725
HB0312_1(4): 61-8-303, 61-8-725
HB0312_1(5): 61-8-303, 61-8-725
HB0312_1(6): 61-8-303, 61-8-725
HB0312_1(7): 61-8-303, 61-8-725
HB0312_1: 61-8-303, 61-8-725
HB0312_2(1): 61-8-303, 61-8-725
HB0312_2(10): 61-8-303, 61-8-725
HB0312_2(11): 61-8-303, 61-8-725
HB0312_2(2): 61-8-303, 61-8-725
HB0312_2(3): 61-8-303, 61-8-725
HB0312_2(4): 61-8-303, 61-8-725
HB0312_2(5): 61-8-303, 61-8-725
HB0312_2(6): 61-8-303, 61-8-725
HB0312_2(7): 61-8-303, 61-8-725
HB0312_2(8): 61-8-303, 61-8-725
HB0312_2(9): 61-8-303, 61-8-725
HB0312_2: 61-8-303, 61-8-725
HB0312_X(1): 61-8-303, 61-8-725
HB0312_X(2): 61-8-303, 61-8-725
HB0312_X: 61-8-303, 61-8-725