Warning Road Sign (W14-3)
No Passing Zone Sign Meaning & Driving Rules
The only pennant-shaped sign in the US road system. Posted on the LEFT side of the roadway at the start of a zone where passing is prohibited.
Required Driver Action & Right-of-Way Protocol
Do NOT attempt to pass any vehicle ahead of you. Stay in your lane until you reach broken yellow centerlines.
Detailed Overview & Purpose
The No Passing Zone sign (W14-3) is unique in two ways: it is the ONLY pennant-shaped sign in the United States, and it is mounted on the LEFT side of the road so drivers in the passing lane see it directly in their line of sight.
It marks areas where limited sight distance (hills, curves, bridges) makes passing other vehicles too dangerous. It is always reinforced by a solid yellow centerline on your side.
Key Standard & Origin: This sign is placed on the LEFT side of the road because a driver preparing to pass is looking down the left lane!
Where You'll Find This Sign
Posted on the left side of two-lane undivided highways before blind curves, hilltops, and bridges.
Common Driver Mistakes to Avoid
Starting a pass legally before the sign and continuing to pass inside the no-passing zone.
How This Sign Appears on the DMV Knowledge & Road Test
One of the top 3 most frequently tested signs on all state permit tests (unique shape + left-side placement).
Legal Penalties and Moving Violations
Passing in a no-passing zone carries 3 to 4 points, heavy fines ($250+), and automatic road test failure.
When you encounter the official No Passing Zone (W14-3) on a roadway, what is your legal duty?
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