‘Idaho Stop’ Now Legal in Colorado

Colorado is the latest state to make it legal for people on bikes to treat stop signs like yield signs when no cars are in the intersection.

2 minute read

April 15, 2022, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Crosswalk

Richard Masoner / Flickr

Colorado Governor Jared Polis signed the “Colorado Safety Stop” into law on April 13, 2022, making it legal for people on bikes to treat stop signs as yield signs and treat stop lights as stop signs, according to an article by Bicycle Colorado.

The article cites data that shows the Safety Stop—known in bicycle and planning circles as the Idaho Stop—reduces collisions involving people on bikes and automobile. Delaware, which adopted a similar law in 2017, has seen a 23 percent drop in collisions involving bicycles at stop sign controlled intersections. Researchers from DePaul University published a study in 2016 that also supported Idaho Stops for the safety of people on bikes.

Bicycle Colorado also provides additional information on the new law, as listed in the source article:

  • Younger bicyclists may perform the maneuver if an adult is present.

    Bicyclists can yield and then proceed through stop sign-controlled intersections at up to 10 miles per hour.
  • Intersections where bicyclist-specific lights or signs are present that prohibit the maneuver are exempt from the new law.
  • The bill defines “low speed conveyances” in Colorado law. These are small profile, low-speed vehicles that people use for transportation and recreation, including bicycles and electric bicycles, electric scooters (not including mopeds), and wheelchairs.

The Colorado Legislature approved the law in March 2022, paving the way for this week’s historic bill signing. Bicycle Colorado says the law has been in the works for years.

The state of Colorado now joins Idaho, Delaware, Arkansas, Oregon, Washington, North Dakota, Utah – 2021, and Oklahoma among states where the Idaho Stop is the law of the land. California could have been on the list, but Gov. Gavin Newsom vetoed AB 122 in 2021.

Wednesday, April 13, 2022 in Bicycle Colorado

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

People biking along beach path with moored ship in San Diego, California.

San Diego Adopts First Mobility Master Plan

The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

2 hours ago - SD News

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

3 hours ago - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

4 hours ago - Streetsblog USA

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Building Inspector

Village of Glen Ellyn

Manager of Model Development

Central Transportation Planning Staff/Boston Region MPO

Senior Planner

Heyer Gruel & Associates PA