The Industrial Relations (Northern Ireland) Order 1992

14.  Regulations may make provision as to the procedure to be followed when it is intended to move a resolution—

(a)appointing another auditor or other auditors in place of a retiring auditor or retiring auditors of a trade union or an employers' association; or

(b)providing expressly that a retiring auditor or auditors of a trade union or an employers' association shall not be re-appointed;

and as to the rights of auditors and members of a trade union or an employers' association in relation to such a motion.