Under the authority of sections 640(i) and 645A(b)(9) of the Head Start Act (42 U.S.C. 9801 et seq. ), this part prescribes regulations on safety features and the safe operation of vehicles used to transport children participating in Head Start and Early Head Start programs. Under the authority of sections 644(a) and (c) and 645A(b)(9) of the Head Start Act, this part also requires Head Start, Early Head Start, and delegate agencies to provide training in pedestrian safety and to make reasonable efforts to coordinate transportation resources to control costs and to improve the quality and the availability of transportation services.