(a) Except when, and to the extent, that this chapter or any other provision of law now or hereafter made expressly exempts an agency, or a particular grant of the rule-making power, from the provisions of this article, every grant of rule-making authority to an executive or administrative officer, office or agency, heretofore provided, shall be construed and applied to be effective only:
(1) If heretofore lawfully exercised in accordance with the prior provisions of this chapter and the resulting rule has not been revoked or invalidated by the provisions hereof or by the agency, or