53. The only bargaining units that may be constituted for the Mobilité Infra Québec employees within the meaning of the Labour Code (chapter C-27) must be constituted according to the following classes of personnel:1° class of engineers comprising the employees who are members of the Ordre des ingénieurs du Québec and the persons admitted to the study of that profession;
2° class of architects comprising the employees who are members of the Ordre des architectes du Québec and the persons admitted to the study of that profession;
3° class of lawyers and notaries comprising the employees who are members of the Barreau du Québec or of the Ordre des notaires du Québec and the persons admitted to the study of those professions;
4° class of chartered appraisers comprising the employees who are members of the Ordre des évaluateurs agréés du Québec and the persons admitted to the study of that profession;
5° class of professionals comprising the employees who are not included in the classes described in paragraphs 1 to 4, who carry out work of a professional nature and whose job requires a university-level diploma; and
6° class of technicians, office personnel and workmen comprising the employees who are not included in the classes described in paragraphs 1 to 5.