 The act received the Royal Assent on 31 July 1963 and came into force immediately.The Act created exceptions to the normal statute of limitations in addition to the previous ones of fraud and mistake.It introduced an exception if 1) the permission of the court had been gained to bring a case and 2) the "material facts" of the case included "facts of a decisive character" which the claimant was not aware of until after the expiry of the statute of limitations.