California Vehicle Code 22107 requires drivers to signal before changing lanes and to make the movement only when it can be done with reasonable safety. Officers issue citations under this section when a lane change is abrupt, cuts off another vehicle, or is made without a signal when other traffic could be affected. The violation carries 1 DMV point and a base fine of $238, with totals typically reaching approximately $490 after assessments.
No person shall turn a vehicle from a direct course or move right or left upon a roadway until such movement can be made with reasonable safety and then only after the giving of an appropriate signal in the manner provided in this chapter in the event any other vehicle may be affected by the movement.
Enacted by Stats. 1959, Ch. 3. (Original enactment.)
Fine & Penalty Amounts
Estimated totals include all mandatory state and county penalty assessments. Actual amounts vary by county court.
Violation Range
Est. Total with Assessments
Notes
Unsafe lane change (standard)
~$490
Includes state and county penalty assessments.
The base fine of $238 applies to a standard VC 22107 infraction. After California's mandatory penalty assessments, the total typically reaches approximately $490. Exact amounts vary by county.
Frequently Asked Questions
Common questions drivers search for after receiving this citation.
California Vehicle Code 22107 requires that before changing lanes or turning, a driver must signal appropriately if any other vehicle may be affected, and must only make the movement when it can be done safely. A citation is issued when a lane change is judged unsafe — typically because it was abrupt, cut off another vehicle, or was made without an adequate signal.
Yes. A conviction under VC 22107 adds 1 point to your California DMV driving record. The point stays on your record for 36 months and can affect your auto insurance premium at renewal.
The base fine is $238. After California's mandatory penalty assessments are applied, the total typically reaches approximately $490. The exact total depends on the county where the citation was issued.
Yes. Common defenses include arguing that the lane change was made safely and with a proper signal, challenging whether any other vehicle was actually affected, questioning the officer's viewing angle or line of sight, or disputing facts in the citation. A Trial by Written Declaration lets you contest the ticket without a court appearance.
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