The terms hereinafter set forth, wherever used in this Division I, are defined as follows. “Employ” means to permit to work. “Employer” means any person, individual, partnership, association, corporation, business trust, or any other organized group or successor of an individual, partnership, association, corporation, trust of persons employing 2 or more persons in the City of Baltimore. “Employer” shall not include the United States, any State, or any political subdivision thereof. “Employee” means any person permitted or instructed to work or be present by an employer. “Employee” shall not include:persons engaged in the activities of an educational, charitable, religious, or other nonprofit organization where the services rendered to such organization are on a voluntary basis, or in return for charitable aid conferred upon such person; persons employed in a bona fide executive, supervisory, or professional capacity; persons employed by any member of their immediate family; persons compensated upon a commission basis only; or persons employed as domestics within a home, only to the extent that such persons have been exempted from the Federal Fair Labor Standards Act as amended and as hereafter amended. City Code, 1966, art. 19, §52 1976/83, art. 19, §64 Ord. 64-370 Ord. 65-491 Ord. 66-739 Ord. 67-1219 Ord. 70-798 Ord. 75-969 Ord. 78-778 Ord. 90-601