Section 13: Appointment not to be held by unregistered persons

(1) Subject to the provisions of this Act, no person, not being registered on the appropriate register, shall be entitled to hold any appointment in the civil service of the Federation or of a State or in any public or private establishment, body or institution, if the holding of such appointment involves the performance by him in Nigeria of any act pertaining to the profession.
(2) Nothing in this section or in any other provisions of this Part of this Act shall prevent a person from holding any appointment referred to in subsection (1) of this section while he is undergoing training for the purpose of becoming qualified for registration under this Act and the training is done under the supervision of persons who are registered on the appropriate register.