Where any regulation is required by this Act to be laid before Parliament, it shall be laid before each House of Parliament for a period of thirty days during the Session of Parliament and, if an Address is presented to His Majesty by either House before the expiration of that period praying that the regulation may be annulled, it shall thenceforth be void but without prejudice to the validity of anything previously done thereunder or to the making of a new regulation:
Provided that, in reckoning any such period of thirty days as aforesaid, no account shall be taken of any time during which both Houses are adjourned for more than four days.