What the Charter in fact establishes is the concept of significant demand. Offices need to measure potential demand in their service areas. They do that on the basis of Statistics Canada data. The absolute number of people in the minority within the service area is established, along with the percentage of the population they represent. On that basis a decision is made as to whether there has to be an office that provides services in both official languages.
On February 10th, 2023. See this statement in context.