Roads with double solid yellow line markings down the center indicate that passing is:

  1. Allowed from both directions.
  2. Allowed only from your direction of travel.
  3. Not allowed from either direction. ✓

Answer: C. Not allowed from either direction.

Passing is not allowed from either direction when double solid yellow lines run down the center.

Why this is the answer

The handbook says not to pass over double solid yellow lines and to stay to the right of them. It lists limited exceptions, such as entering an HOV lane at a designated entrance, following signs when your side of the road is closed, or turning left across a single set of double yellow lines into a driveway, private road, or U-turn. Those exceptions do not make passing legal in either direction. A broken yellow line next to your lane is what can permit passing when safe. So the double solid marking means no passing from either direction.

Why the other answers are wrong

Remember it

Picture the two yellow lines as a fence you do not cross to pass; keep to the right and wait for a broken line on your side.

Official handbook: California Driver Handbook (DL 600), Section 6: Navigating the Roads, p. 13

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.