In this chapter, the following terms have the meanings indicated. Terms Defined. “Health officer” means the health officer in each of the 23 counties of Maryland and the Commissioner of Health in Baltimore City, the designated representative of the health officer, or both. “Preschool program” means a program that enrolls children in an educational program below the level of kindergarten. “Regulated child care program” means: A family day care provider registered pursuant to COMAR 07.04.01; The operator of a child care center licensed pursuant to COMAR 07.04.02; or The operator of a child care facility issued a letter of compliance pursuant to COMAR 07.04.05. “Secretary” means the Secretary of Health or the Secretary's designee.