Disabled persons who display their placards can park at a ......................... curb.

Explanation

Painted colored curbs have the following special parking rules: White–Stop only long enough to pick up or drop off passengers or mail. Green–Park for a limited time. Look for a posted sign next to the green zone for time limits, or locate the time limit painted on the curb. Yellow–Stop no longer than the time posted to load or unload passengers or freight. Drivers of noncommercial vehicles are usually required to stay with the vehicle. Red–No stopping, standing, or parking. (Buses may stop at a red zone marked for buses.)