California law states that drivers must stay at least three feet away from bicyclists traveling in same direction. (Courtesy photo)

California law states that drivers must stay at least three feet away from bicyclists traveling in same direction. (Courtesy photo)

California law addresses safety for bicyclists

Cars must stay at least 3 feet away from people on bikes

California law addresses safety for bicyclists

By Christopher Dolan and Taylor French

Drivers and bicyclists must coexist in an environment that, at times, can feel too crowded for both.

California has enacted several laws throughout the years in an effort to ensure the safety of those sharing the roads, but none is more important than the Three Feet for Safety Act. In 2013, California’s legislature passed the act, codified as California Vehicle Code section 21760, requiring drivers to give bicyclists a minimum of three feet between the motor vehicle and bicycle when passing in the same direction on a highway. This law became operative on Sept. 16, 2014.

Prior to the act, the California Department of Motor Vehicles had already provided that maintaining three feet between cars and bicycles was the best practice, but the act gave law enforcement the ability to stop a motorist and issue an infraction for failing to keep this distance. An infraction issued for a violation of California Vehicle Code section 21760 results in a minimum fine of $35. If a collision occurs between a car and bicycle causing great bodily injury to the bicyclist, the driver of the car will be issued a $220 fine. In addition to these fines, however, the motorist will also likely incur court fees and/or other administrative fees, which could significantly increase the cost of a violation.

While the act is as straightforward as it sounds — a car may not pass a bicycle traveling in the same direction unless it provides, at a minimum, three feet between the car and the bicycle — there is another important caveat. Subsection D of California Vehicle Code section 21760 states, “If a driver is unable to pass with three feet of distance due to traffic or roadway conditions, the driver shall slow to a speed that is reasonable and prudent, and may pass only when doing so would not endanger the safety of the operator of the bicycle, taking into account the size and speed of the motor vehicle and bicycle, traffic conditions, weather, visibility, and surface and width of the highway.”

The language of subsection D appears to give some discretion to officers stopping motorists for passing too closely and to drivers when deciding whether to pass a bicyclist. Ultimately, this language also gives judges discretion in issuing fines, should a driver contest the violation.

In addition to an infraction, a violation of California Vehicle Code section 21760 may carry additional ramifications that drivers may not anticipate. For example, if a driver hits and injures a bicyclist in violation of California Vehicle Code section 21760, the driver can be found to be, “negligent per se,” in a civil lawsuit.

Negligence per se is a legal doctrine establishing a presumption of negligence for a violation of a statute, ordinance or regulation. If a defendant in a civil lawsuit is found to have violated a statute, the violation caused the type of harm the statute was designed to protect, and the plaintiff is of the class of people the statute was designed to protect, then the defendant is considered negligent per se. In other words, as a matter of law and as applicable here, a defendant driver who violated California Vehicle Code section 21760 — thereby causing bodily injuries to a bicyclist — could be considered negligent and liable for those injuries and the resulting damages.

So, what can drivers do to ensure they are maintaining at least three feet from bicyclists and to avoid a violation of California Vehicle Code section 21760? Most importantly, if in doubt, drivers should assume they are too close to a bicyclist. Remember, the act provides the minimum distance from a bicyclist that a driver must maintain, but there are certainly situations where three feet is simply not enough space.

Drivers should consider the amount of time it takes to bring a car to a complete stop to avoid hitting a bicyclist. When passing, drivers should consider changing lanes rather than attempting to sneak past bicyclists. And remember, drivers can only pass a bicyclist when it is safe to do so, and risking a bicyclist’s life to save a few extra minutes during one’s commute is never a risk worth taking.

Finally, what can bicyclists do to ensure a safe distance around them? Bicyclists should always make sure they are visible and should never assume a driver will maintain a three-foot minimum distance.

While the act puts the burden on the driver to maintain the three-foot buffer, bicyclists should always make sure to monitor the distance and avoid careless, distracted or inexperienced drivers. Bicyclists can even wear a “Three Feet” bike jersey to remind drivers of the distance requirement. It just may save a life and get the bicyclist some compliments in the process!

Christopher B. Dolan is the owner of the Dolan Law Firm. Taylor French is an associate attorney in our Los Angeles office. Email questions and topics for future articles to: We serve clients across the San Francisco Bay Area and California from our offices in San Francisco, Oakland and Los Angeles. Our work is no recovery, no free or also referred to as contingency-based. That means we collect no fee unless we obtain money for your damages and injuries.


If you find our journalism valuable and relevant, please consider joining our Examiner membership program.
Find out more at

Just Posted

Some people are concerned that University of California, San Francisco’s expansion at its Parnassus campus could cause an undesirable increase in the number of riders on Muni’s N-Judah line.<ins></ins>
Will UCSF’s $20 million pledge to SFMTA offset traffic woes?

An even more crowded N-Judah plus increased congestion ahead cause concern

Toni Isabella, a counselor at Ohlhoff Recovery Programs, finds helpful assistance from service dog Barker Posey.<ins> (Kevin N. Hume/S.F. Examiner)</ins>
Toni Isabella: Helping people indoors and out recover from addiction’s dark side

Counselor supports holistic, progressive approach to healing

A health care worker receives one of the first COVID-19 vaccine doses at Zuckerberg San Francisco General Hospital on Tuesday Dec. 15, 2020. (Courtesy SFgov)
SF to open three large sites for COVID-19 vaccinations

Breed: ‘We need more doses. We are asking for more doses’

San Jose Sharks (pictured Feb. 15, 2020 vs. Minnesota Wild at Xcel Energy Center) open the season on Monday against the St. Louis Blues in St. Louis. (Tribune News Service archive)
This week in Bay Area sports

A look at the upcoming major Bay Area sports events (schedules subject… Continue reading

Tongo Eisen-Martin, a Bernal Heights resident, named San Francisco’s eighth poet laureate. (Kevin N. Hume/S.F. Examiner)
Tongo Eisen-Martin becomes San Francisco’s eighth poet laureate

Bernal Heights resident Tongo Eisen-Martin has become San Francisco’s eighth poet laureate.… Continue reading

Most Read