Miss. Code § 73-6-27
Any person who has graduated from a college approved by the International Chiropractors Association or American Chiropractic Association and who was engaged in the full-time practice of chiropractic in Mississippi prior to January 1, 1970, or was engaged in the full-time practice of chiropractic in Mississippi for a period of eight (8) years prior to April 16, 1973, shall be entitled to a license hereunder by making application to the State Board of Chiropractic Examiners without being required to take the examination of the State Board of Chiropractic Examiners, provided he applies for such license within ninety (90) days after the appointment of the initial board, submits reasonable evidence to the board establishing his eligibility for such exemption, and pays a Twenty-five Dollar registration fee. All other persons practicing chiropractic within the State of Mississippi on April 16, 1973, shall be eligible to take the approved examination.
Miss. Code § 73-6-27