27 Miss. Code. R. 220-IV-4.4
A Participant who will attain age 50 before the close of the calendar year may elect Age 50 Plus Catch-up Contributions and commence making such contributions to his Participant Deferral Account. Such contributions are not subject to the limitations of Code Section 457(b) of the Code, but instead are subject to other limitations of Code Section 457(b) of the Code. The maximum dollar amount of the Age 50 Plus Catch-up Contributions for a calendar year is adjusted for cost of living under Section 414(v)(2)(C) of the Code. The Board shall have the authority, in its sole discretion, if determined necessary to comply with applicable law, to suspend the right to make elective deferrals under this paragraph for 2024 or any subsequent calendar year. Any suspension under this subsection shall apply to any new or existing Participation Agreement in effect for such year or years.
27 Miss. Code. R. 220-IV-4.4