Section 10: Short title, extent and repeal.

(1) This Act may be cited as the Official Secrets Act.
(2) This Act shall apply throughout the Federation and shall apply to citizens of Nigeria elsewhere than in the Federation.
(3) The Official Secrets Act is hereby repealed, so however that section 5 of the Official Secrets Act, 1920 (which provides for the control of mail forwarding agencies) shall not cease to have effect in its application to Nigeria until the first regulations made in pursuance of section 4 of this Act come into force.
(4) Subsection (3) of this section shall not be construed as repealing the Official Secrets Act (hereinafter referred to as "the former legislation") in so far as, apart from that subsection, the former legislation has effect as part of the Law of a State and is not inconsistent with or made redundant by the Act; and the former legislation shall have effect accordingly.
(5) Nothing in this section shall affect any power of the Legislature of a State to make laws with respect to public safety which are not inconsistent with the provisions of the Act and, in particular, to make laws repealing the former legislation in so far as it has effect as part of the Law of the State.