R-20, r. 12 - Rules of procedure and practice of the construction industry commissioner

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13. Any party to a matter, application or proceeding may, upon authorization of the construction industry commissioner and on the conditions determined by the commissioner, call upon a third party whose presence is necessary to reach a complete settlement of the case.
The commissioner may, on his own initiative, implead any party whose interests may be affected by the commissioner’s decision.
O.C. 850-2002, s. 13.