includes janitors and cleaners, maids and housekeeping cleaners, and building cleaning workers. (21) Secretary The term Secretary means the Secretary of Labor. (22) Secretary's designated employee The term Secretary's designated employee means an employee employed in an occupation, other than a retail, food service, cleaning, hospitality, or warehouse occupation, that is designated by the Secretary under section 9(a)(2) as appropriate for coverage under section 4. (23) Serious health condition The term serious health condition has the meaning given the term in section 101 of the Family and Medical Leave Act of 1993 ( 29 U.S.C. 2611 ). (24) Sibling The term sibling means a brother or sister, whether related by half blood, whole blood, or adoption, or as a stepsibling. (25) Split shift The term split shift means a schedule of daily hours in which the hours worked are not consecutive, except that— (A) a schedule in which the total time out for meals does not exceed one hour shall not be treated as a split shift