Answer
Unions in Canada have a ‘Duty of Fair Representation.’ This means that Unions cannot act in an arbitrary manner, a bad faith manner or a discriminatory manner. This does not require the Union to represent every member in every circumstance or in the manner preferred by the member.
If a member requests an individual grievance, an appropriate Union Representative will turn their minds to your concerns and make an individualized assessment of your request.
Legislation in the Yukon such as the Yukon Public Service Labour Relations Act requires consent of the Union to file any grievance related to interpretation of an article of a Collective Agreement.