Miss. Code Ann. § 71-5-5

The Legislature finds and declares that the existence and continued operation of a federal tax upon employers, against which some portion of the contributions required under this chapter may be credited, will protect Mississippi employers from undue disadvantages in their competition with employers in other states. If at any time, upon a formal complaint to the Governor, he shall find that Title IX of the Social Security Act has been amended or repealed by Congress or has been held unconstitutional by the Supreme Court of the United States, and that, as a result thereof, the provisions of this chapter requiring Mississippi employers to pay contributions will subject them to a serious competitive disadvantage in relation to employers in other states, he shall publish such findings and proclaim that the operation of the provisions of this chapter requiring the payment of contributions and benefits shall be suspended for a period of not more than six (6) months. The Department of Employment Security shall thereupon requisition from the Unemployment Trust Fund all monies therein standing to its credit, and shall deposit such monies, together with any other monies in the Unemployment Compensation Fund, as a special fund in any banks or public depositories in this state in which general funds of the state may be deposited.

In all other cases, and unless the Governor shall issue such proclamation, this chapter shall remain in full force and effect.

If within the aforesaid six-month period the Governor shall find that other federal legislation has been enacted which avoids the competitive disadvantage herein described, he shall forthwith publicly so proclaim, and upon the date of such proclamation, the provisions of this chapter requiring the payment of contributions and benefits shall again become fully operative as of the date of such suspension with the same effect as if such suspension had not occurred. If within such six-month period no such other federal legislation is enacted or the Legislature of this state has not otherwise prescribed, the Department of Employment Security shall, under regulations prescribed by it, refund, without interest, to each employer by whom contributions have been paid his pro rata share of the total contributions paid under this chapter. Any interest or earnings of the fund shall be available to the Department of Employment Security to pay for the costs of making such refunds. When the Department of Employment Security shall have executed the duties herein prescribed and performed such other acts as are incidental to the termination of its duties under this chapter, the Governor shall, by public proclamation, declare that the provisions of this chapter, in their entirety, shall cease to be operative.