From Alabama Department of Transportation Standard Specifications for Highway Construction:
“(e) PILOT CAR, FLAGGERS, AND FLAGGING EQUIPMENT.
The pilot car, flaggers, and all flagging equipment shall meet the requirements of the MUTCD. The pilot car shall be a registered motor vehicle designed for use upon a highway. ‘Off-road’ type vehicles will not be allowed.”
From Alabama Department of Transportation Guidance for Road Safety Assessments & Reviews:
“Flaggers: Flaggers are responsible for public safety and, of all highway workers, make the greatest number of contacts with the public. The flaggers should be highly visible and should be trained in safe traffic control practices. Drivers should be given advance notice of a lane closure before they arrive at the flagger’s position. The flagger should be wearing high-visibility safety apparel that meets the requirements of the MUTCD.”