HB312

Revise speed limit laws

Complete·5/1/25

Montana HB312 revises speed limit laws, increasing daytime and nighttime speed limits on expanded national highways and modifying insurance company.

Montana HB312 revises speed limit laws by increasing daytime and nighttime speed limits on national highways that have been expanded to four lanes, except in special speed zones. The bill sets the speed limit at 80 miles per hour for interstate highways outside urbanized areas and 65 miles per hour within urbanized areas. It also raises the speed limit on expanded national highways to 75 miles per hour during the daytime and 70 miles per hour at night.

Included in complete analysis

  • Overview
  • Core Provisions
  • Implementation
  • Impact
  • Legal Framework
  • Critical Issues

See what it does, who it affects, and the critical issues in plain language. Free, 30 seconds.

Sponsors

0
1
R
Democratic CaucusRepublican Caucus

Roll Call Votes

44 Yea

DRRRRDDRRDRRDDDRRRDDRRRRDRRRDRRDRDDRRDRRRRDR

4 Nay

RDDR

2 Absent

RR

Calendar

Feb 24, 2025

3:00 PM

Senate Highways and Transportation Hearing

Feb 3, 2025

3:00 PM

House Transportation Hearing

History

May 5, 2025

House

Chapter Number Assigned

May 1, 2025

House

(H) Signed by Governor

Apr 22, 2025

Senate

(S) Signed by President