Overtaking on Grade or Curve
Passing another vehicle on a grade or curve where the driver's view is obstructed within a distance creating an unsafe condition.
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 Overtaking on Grade or Curve ticket?
This violation occurs when you pass another vehicle in an unsafe location, specifically on a curve or hill where you cannot see far enough ahead to pass safely. California law prohibits overtaking when your view of oncoming traffic is blocked by the road's grade or curvature.
A CVC 21751 ticket costs between $238 and $490 and adds 1 point to your DMV record. That point stays on your record for 3 years and can increase your auto insurance rates by 15-25% annually, potentially costing you hundreds of extra dollars.
A CVC 21751 conviction typically raises insurance premiums by 15-25% for three years. For an average California driver, this can mean $300-$600 in additional insurance costs over that period, on top of the original fine.
What the Law Says
What the Officer Must Prove
- 1You overtook a vehicle on a two-way road
- 2There was not sufficient sight distance to complete the pass safely
How Drivers Get This Ticket
A driver passes a slow-moving truck while going uphill, unable to see over the crest of the hill ahead.
Ticket issued because the driver couldn't see if oncoming traffic was approaching from beyond the hill.
A motorist attempts to pass a vehicle on a winding mountain road where the curve blocks visibility of oncoming lanes.
Citation given for passing where the driver couldn't see at least 200 feet ahead in the oncoming lane.
A driver passes a cyclist on a straight section of road with clear visibility for 500 feet ahead.
No violation because there was adequate visibility to complete the pass safely.
Common Defenses for Overtaking on Grade or Curve
These are the defense arguments that appear most often in successful Trial by Written Declarations for this violation.
Sufficient sight distance was available
CVC 21751 prohibits overtaking when there is not sufficient clearance ahead. If sight distance was adequate and no oncoming traffic was within the danger zone, challenge the factual determination.
How to Address This in Your Declaration
- ✓Photos or video showing the actual visibility conditions at the location
- ✓Dashcam footage demonstrating clear sightlines during the pass
- ✓Google Street View or satellite images showing the road geometry
- ✓Evidence of roadside mirrors or other visibility aids at that location
- ✓Testimony about road conditions, weather, and traffic at the time
- ✓Measurements showing visibility exceeded 200 feet
⚠️ What NOT to Do
- ✗Admitting you couldn't see oncoming traffic when speaking to the officer
- ✗Arguing that no oncoming cars were present — visibility is what matters, not actual traffic
- ✗Confusing this violation with illegal passing in a no-passing zone (different code)
- ✗Assuming the ticket is unbeatable because it happened on a hill or curve
- ✗Missing the deadline to respond to your citation
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Frequently Asked Questions About Overtaking on Grade or Curve
What exactly counts as a 'grade' under this law?▼
A grade refers to any hill or incline that limits your ability to see the road ahead. This includes both going uphill where the crest blocks your view and coming down where the slope may obscure approaching vehicles.
How much visibility do I need to legally pass?▼
California law requires you to be able to see at least 200 feet ahead in the oncoming lane before passing. If a hill or curve prevents this visibility, passing is prohibited regardless of whether traffic is actually present.
Can I fight this ticket if no cars were coming?▼
Yes, but focus on proving you had adequate visibility, not that the road was empty. The violation is about obstructed sight distance, not whether oncoming traffic was actually present at that moment.
Is this different from passing in a no-passing zone?▼
Yes. CVC 21751 specifically addresses passing on hills and curves with limited visibility. Passing zone violations (marked with double yellow lines) fall under CVC 21460 and are separate offenses.
What if I was passing a very slow vehicle like a tractor?▼
The speed of the vehicle you're passing doesn't change the visibility requirements. However, if visibility was actually adequate to safely pass, you can argue that point regardless of what type of vehicle you passed.
Traffic School Option
Most drivers cited for CVC 21751 qualify for traffic school if they haven't attended in the past 18 months. Completing traffic school keeps the point off your public driving record and prevents insurance increases.
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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.