An applicant for a drop-in center license shall: Submit to and receive prior approval from the office of a written plan of operation for the center; and Operate according to the approved plan. An applicant shall include in the written plan of operation: The ages, numbers, and groupings of children to be served; The space, materials, equipment, and furnishings to be used at the center; The hours, days, and months of operation; The activity program of the center; and A method for ensuring that children are released only to their parents or other persons authorized by parents to pick up children who are properly identified to the center.