Any provisions in this act to the contrary notwithstanding, whenever the Governor of this Commonwealth is formally notified by the Secretary of the United States Department of Labor or any authorized officer of the Federal government that any provision or provisions of this act are inconsistent with any Federal law with which State employment security laws are required to conform as a condition for the allowance of credit against Federal taxes on payrolls or the receipt of funds for the administration of employment security programs, such provision or provisions upon proclamation by the Governor, shall be deemed inoperative and of no effect. Such proclamation shall include when necessary such provision or provisions as may be necessary to remedy such inconsistency which shall have the full force and effect of law from the date thereof if approved by appropriate amendment to this act in the next session of the General Assembly having jurisdiction of the subject matter, otherwise such provision or provisions shall be null and void from the date of the General Assembly's disapproval or adjournment, whichever occurs the earlier.