The operator shall: Maintain and, upon request by the office, submit a current and complete list of personnel, on a form supplied or approved by the office, that includes each individual, whether paid or unpaid, who works at the center on a routine basis; For review by the office and by parents who have enrolled their children or are considering enrolling their children, post in a conspicuous location a current and complete staffing pattern, on a form supplied or approved by the office, that specifies: The number and ages of children enrolled; The staff/child ratio in relation to the daily schedule; and By staff name, all child care assignments; During an individual’s employment at the center and for 2 years after the date of the individual’s last employment there, maintain a record for each individual that includes: The individual’s: Training, including initial and yearly basic health and safety training, if required under this subtitle; Experience, if required under this subtitle; and Function or position; Verification that the staff member's age complies with the minimum required for the position held; An employment medical evaluation; Criminal background check results, except that the operator shall destroy the record of those results immediately after the last day of the individual’s employment; and The date on which the staff member received the written information required by COMAR 13A.16.06.02; Maintain documentation required for: Substitutes, pursuant to COMAR 13A.16.06.13; and The adult available for emergencies, pursuant to COMAR 13A.16.08.02D(3); and Maintain a calendar or other written record of the: Days on which a substitute provides care; and Staff member in whose place the substitute worked.