All children in care at any one time are counted as being in attendance for purposes of complying with the regulations governing capacity, group size, and staff/child ratios. An operator may not enroll a child for more than 14 hours in a 24-hour period unless approved in advance by the office. An operator may not admit an infant who is younger than 6 weeks old. An operator may enroll a child only if the office has given written approval for the facility to care for children of that child's age.