721.01 DEFINITIONS. 
   As used in this chapter, Ainstitution" and "association" mean any incorporated or unincorporated organization, society, association, day-care center or agency which receives or cares for children for periods of four or more hours per day for two or more consecutive weeks. This definition also includes any individual who, for hire, gain or reward, receives or cares for children for periods of four or more hours per day for two or more consecutive weeks, unless he is related to them by blood or marriage. This definition shall not include any individual who provides care for only a single family group placed there by their parents or other relative having custody. (1964 Code §92.1)