A Participant shall no longer continue to contribute to the Plan if:
Where a Participant in the Plan accepts a position that is not eligible for the Plan, that individual's participation in the Plan will be suspended during the period in which the individual occupies a position for which participation in the Plan is not available. The individual's participation in the Plan will recommence, by virtue of the election made at the time of initial employment in an ORP-eligible position, when the individual again occupies a position for which participation in the Plan is available.
27 Miss. Code. R. 240-III-3.5