(a) The Director of the Mobile County Personnel Board, upon request of an appointing authority, shall add to any certification of three applicants eligible for employment, the name of any handicapped person on the eligible list who is certified by the Director of the Division of Rehabilitation of Crippled Children, State Department of Education, as being eligible for rehabilitation services; but, the personnel director shall not give preference in certification for employment to any handicapped person if he or she finds such person is physically or otherwise unfit to perform effectively the duties of the position in which he or she seeks employment.
(b) The decision of the personnel director shall be final.