Section 15: Persons is deemed to practice as professional public administrators of Nigeria

(1) From the commencement of this Act, any person who was not a member of the Institute and who under this Act, is qualified to apply for and obtain membership of the profession may, within the period of three months beginning with the date of the commencement of this Act, apply for membership of the Institute in the manner prescribed by the Council and if approved, he shall be enrolled or registered, as the case may be, according to the person's qualification.
(2) A person is deemed to be a professional public administration of Nigeria practitioner if, for consideration of remuneration to be received whether by himself or in partnership with any other person –
(a) he engages in the practice of public administration in Nigeria or holds himself out to the public as a professional public administration of Nigeria consultant;
(b) he renders professional service or assistance in or about matters of principle or detail relating to public administration in Nigeria or data; or
(c) renders any other service that may, by regulations made by the Council, be designated as service constituting practice as a professional public administration of Nigeria practitioner or consultant.