530.7. Upon receipt of one or more petitions, the labour commissioner general shall proceed as follows:(1) if he comes to the conclusion that the petitioning association is the only association possessing certification in the territory of the new school board or that the petitioning association is the only association to have filed a petition, he shall certify it and indicate what group of employees constitutes the bargaining unit;
(2) if he comes to the conclusion that the petitioning association has obtained the agreement of all associations of employees entitled to certification to represent a group of employees, he shall certify the petitioning association and indicate what group of employees constitutes the bargaining unit;
(3) if he comes to the conclusion that all petitioning associations have agreed that one petitioning association be certified to represent a group of employees, he shall certify that petitioning association and indicate what group of employees constitutes the bargaining unit;
(4) if he comes to the conclusion that all the petitioning associations agree to amalgamate into a single association, he shall certify the association resulting from the amalgamation and indicate what group of employees constitutes the bargaining unit;
(5) if he comes to the conclusion that there is no agreement between the petitioning associations as to certification of one association to represent a group of employees, he shall determine what group of employees constitutes the bargaining unit and order a vote by secret ballot.