In order to pass another vehicle, you must be in a designated passing zone marked by which type of line?

• A. Solid line
• B. Double solid line
• C. No line
• D. Dashed line

Answer: (D)

Passing legally in two-lane traffic is guided by centerline markings. A dashed line along your side of the center indicates a designated passing zone, meaning you may pass other vehicles when it’s safe to do so and you have a clear view of oncoming traffic. This dashed marking signals that the road has enough visibility and space for a passing maneuver.

Solid lines, whether a single solid line or two solid lines, forbid passing from your side because they indicate insufficient visibility or safety for passing. If there’s no dividing line at all, there isn’t a designated passing zone marked by line type, so you should not assume passing is allowed there.

So, the dashed line is the marker that tells you you’re in a passing zone and you may pass if conditions are safe.