CVC 21809(a)Eligible for written declaration

Failure to Move Over or Slow Down for a Stopped Emergency, Tow, Maintenance or Warning-Light Vehicle

Approaching a stationary emergency vehicle, tow truck or highway maintenance vehicle with its warning lights on, or another stationary vehicle with hazard lights or warning devices, without due caution, and without moving to a lane not next to it or, if that is unsafe or impracticable, slowing to a reasonable and prudent speed.

Reviewed by the TicketClear teamLast reviewed October 10, 2026

Fine: $234DMV Points: 1🏫 Traffic school may be available

Insurance: insurers must weigh your driving safety record first (Insurance Code 1861.02(a)), and more than one violation point counted under Vehicle Code 12810(a) to (d), (f), (i)(1) or (j) in the previous three years ends Good Driver Discount eligibility (Insurance Code 1861.025(b)(1)).

This guide is for general educational purposes only and does not constitute legal advice. TicketClear is a self-help document preparation service — we are not attorneys and do not represent clients. Review all prepared documents carefully before submitting. Fine amounts are estimates and vary by county and surcharge schedule.

What is a Failure to Move Over or Slow Down for a Stopped Emergency, Tow, Maintenance or Warning-Light Vehicle ticket?

CVC 21809(a) says a person driving on a highway approaching a stationary authorized emergency vehicle displaying emergency lights, a stationary tow truck or marked highway maintenance vehicle displaying flashing amber warning lights, or any other stationary vehicle displaying flashing hazard lights or another warning device (including cones, flares, or retroreflective devices) shall approach with due caution and, before passing in a lane immediately adjacent to that vehicle, absent other direction by a peace officer, shall either (1) make a lane change into an available lane not immediately adjacent to it, with due regard for safety and traffic conditions, if practicable and not prohibited by law, or (2) if that would be unsafe or impracticable, slow to a reasonable and prudent speed that is safe for existing weather, road, and vehicular or pedestrian traffic conditions.

Ask your insurer how a conviction affects your policy.

What the Law Says

(a) A person driving a vehicle on a highway approaching a stationary authorized emergency vehicle that is displaying emergency lights, a stationary tow truck that is displaying flashing amber warning lights, a stationary marked highway maintenance vehicle that is displaying flashing amber warning lights, or any other stationary vehicle displaying flashing hazard lights or another warning device, including, but not limited to, cones, flares, or retroreflective devices, shall approach with due caution and, before passing in a lane immediately adjacent to the authorized emergency vehicle, tow truck, highway maintenance vehicle, or any other vehicle, absent other direction by a peace officer, proceed to do one of the following: (1) Make a lane change into an available lane not immediately adjacent to the authorized emergency vehicle that is displaying emergency lights, a stationary tow truck that is displaying flashing amber warning lights, a stationary marked highway maintenance vehicle that is displaying flashing amber warning lights, or any other stationary vehicle displaying flashing hazard lights or another warning device, including, but not limited to, cones, flares, or retroreflective devices, with due regard for safety and traffic conditions, if practicable and not prohibited by law. (2) If the maneuver described in paragraph (1) would be unsafe or impracticable, slow to a reasonable and prudent speed that is safe for existing weather, road, and vehicular or pedestrian traffic conditions.

What the Officer Must Prove

1You were driving on a highway approaching a stationary vehicle of a kind CVC 21809(a) lists, displaying the lights or warning devices it describes
2Before passing in the lane immediately adjacent to it, you did not change into an available non-adjacent lane when practicable, and did not slow to a reasonable and prudent speed when a lane change was unsafe or impracticable

Arguments Commonly Raised for Failure to Move Over or Slow Down for a Stopped Emergency, Tow, Maintenance or Warning-Light Vehicle

General information: arguments drivers commonly raise for this code section. Whether any applies depends on your own facts.

You changed lanes

CVC 21809(a)(1) is met by a lane change into an available lane not immediately adjacent to the stationary vehicle. Describe your lane.

A lane change was unsafe or impracticable, and you slowed

CVC 21809(a)(2) says that if a lane change would be unsafe or impracticable, the driver shall slow to a reasonable and prudent speed that is safe for existing conditions. Describe the traffic and your speed.

Direction by a peace officer

The section applies absent other direction by a peace officer. Describe any direction you were given.

Not adjacent, or behind a barrier

CVC 21809(c) says the requirements of subdivision (a) do not apply if the stationary vehicle is not adjacent to the highway or is separated from the highway by a protective physical barrier. Describe where it was stopped.

⚠️ Common Mistakes

✗Leaving out the traffic in the lanes next to you
✗Not describing your speed as you passed

What this code section covers (general information)

CVC 21809(a) — Failure to Move Over or Slow Down for a Stopped Emergency, Tow, Maintenance or Warning-Light Vehicle. Approaching a stationary emergency vehicle, tow truck or highway maintenance vehicle with its warning lights on, or another stationary vehicle with hazard lights or warning devices, without due caution, and without moving to a lane not next to it or, if that is unsafe or impracticable, slowing to a reasonable and prudent speed.

This is a fixed-rule section: it describes a specific act or limit. The question is whether the facts show that act: what happened, where, and how it was observed or measured.

Eligible for Trial by Written Declaration: generally yes.

This is general information about CVC 21809(a). It is not advice about your citation, and TicketClear does not evaluate anyone's facts. Whether any of it applies depends on your own facts. For advice about your situation, consult a licensed California attorney.

Frequently Asked Questions About Failure to Move Over or Slow Down for a Stopped Emergency, Tow, Maintenance or Warning-Light Vehicle

What if I could not move over?▼

CVC 21809(a)(2) says that if a lane change would be unsafe or impracticable, the driver shall slow to a reasonable and prudent speed that is safe for existing weather, road, and vehicular or pedestrian traffic conditions.

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Traffic School Option

A conviction adds 1 DMV point. The court may let you complete traffic school. If it is the only ticket you have done traffic school for in 18 months, the record is kept confidential and no point is counted (Vehicle Code 1808.7(a)). Traffic school is not available for a violation in a commercial motor vehicle (Vehicle Code 42005(c)(1)). If you hold a commercial driver license, the record is not kept confidential (Vehicle Code 1808.7(b)). Check your notice or your court's website for your options.

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