From and after the effective date of this act the Supreme Court and the Criminal Court of Appeals shall have authority, in such manner as they deem advisable, to declare the published volumes of the decisions of the Supreme Court and the Criminal Court of Appeals of the State of Oklahoma, as the same may be published by one or more persons, firms or corporations, and containing only the decisions of the Supreme Court of Oklahoma and/or the Criminal Court of Appeals of Oklahoma, to be official reports of the decisions of said Courts, whether the decisions of said Courts are published in separate volumes or the same volume.