The board may, in its discretion, deny the right to become a member to: [PL 1985, c. 801, §§5, 7 (NEW).]
1. Compensation partly paid by State. Any class of employees, except teachers, whose compensation is only partly paid by the State; or
2. Other than per annum payment. Any class of employees who are serving on a temporary basis or whose compensation is set on any basis other than a per annum basis.