Miss. Code § 27-67-33
Nothing in this article shall affect or defeat any claim, assessment, appeal, suit, right or cause of action for taxes, due or accrued under Chapter 119, Laws of 1934, Chapter 516, Laws of 1950, Chapter 409, Laws of 1952, or Chapter 111, Laws of 1955, as amended, prior to August 1, 1968, whether such assessment, appeal, suit, claim or action shall have been begun before August 1, 1968, or shall thereafter be begun; and the provisions of Chapter 119, Laws of 1934, Chapter 516, Laws of 1950, Chapter 409, Laws of 1952, and Chapter 111, Laws of 1955, are expressly continued in full force, effect and operation for the purpose of the assessment and collection of any taxes due or accrued under any such law, and amendments thereto, prior to August 1, 1968, and for the imposition of any penalties, forfeitures or claims for a failure to comply therewith.
Miss. Code § 27-67-33