KLS Keeping Law Simple Legislation in plain English

Straight-ahead summaries built from the official bill text. We keep the source links front and center and leave the decision up to you.

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HB4137 • 2026

Traffic control: speed restrictions; determination in accordance with traffic engineering practices; modify. Amends sec. 628 of 1949 PA 300 (MCL 257.628).

Traffic control: speed restrictions; determination in accordance with traffic engineering practices; modify. Amends sec. 628 of 1949 PA 300 (MCL 257.628).

Technology
Active

The official status still shows this bill as active or still awaiting another formal step.

Sponsor
Bradley Slagh (District 85), Julie Rogers (District 41), Tom Kunse (District 100), Matt Bierlein (District 97)
Last action
2025-03-04
Official status
bill electronically reproduced 02/26/2025
Effective date
Not listed

Plain English Breakdown

The official source material does not provide specific details about the requirements for setting speed limits based on traffic engineering studies, only that it amends section 628 of MCL 257.628.

Speed Limits Based on Traffic Engineering

This law changes how speed limits are set to follow traffic engineering practices.

What This Bill Does

  • Changes the way speed limits are decided for roads and streets.
  • Updates section 628 of the Michigan Compiled Laws (MCL 257.628) to reflect these changes.

Who It Names or Affects

  • Drivers who must follow new or updated speed limit signs.
  • Traffic engineers and city planners responsible for setting speed limits.

Terms To Know

traffic engineering
The study of how to make roads safer and more efficient by using science, technology, and planning.

Limits and Unknowns

  • It is not clear what specific changes will be made until the bill becomes a law.
  • The exact impact on current speed limits is unknown until new studies are done.

Bill History

  1. 2025-03-04 HJ 22 Pg. 178

    bill electronically reproduced 02/26/2025

  2. 2025-02-26 HJ 21 Pg. 171

    introduced by Representative Rep. Bradley Slagh

  3. 2025-02-26 HJ 21 Pg. 171

    read a first time

  4. 2025-02-26 HJ 21 Pg. 171

    referred to Committee on Transportation and Infrastructure

Official Summary Text

Traffic control: speed restrictions; determination in accordance with traffic engineering practices; modify. Amends sec. 628 of 1949 PA 300 (MCL 257.628).