(a) Administrators.(1) An assignment for Superintendent is allowed with one of the following certificates.(A) Administrator.(B) Superintendent.(2) An assignment for Principal is allowed with one of the following certificates.(A) Administrator.(B) Mid-Management Administrator.(C) Principal.(D) Superintendent.(3) An assignment for Assistant Principal is allowed with one of the following certificates.(A) Administrator.(B) Assistant Principal.(C) Mid-Management Administrator.(D) Principal.(E) Superintendent.(b) School Counselor. An assignment for School Counselor is allowed with one of the following certificates.(1) Counselor.(2) School Counselor (Early Childhood-Grade 12).(3) Special Education Counselor.(4) Vocational Counselor.(c) Librarian. An assignment for Librarian is allowed with one of the following certificates.(1) Learning Resources Endorsement.(2) Learning Resources Specialist.(3) Librarian.(4) School Librarian (Early Childhood-Grade 12).(d) Athletic Director. An assignment for Athletic Director is allowed with a valid Texas classroom teacher certificate.