Welcome to the Southern Interior District Council – SIDC (formerly OMDC) website.

Southern Interior District Council (SIDC) has changed their name from Okanagan Mainline District Council (OMDC)

Southern Interior District Council (SIDC) of the Canadian Union of Public Employees has been formed to: 

  • Improve the social and economic well being of all of its members;
  • Promote equality for all members and to oppose all types of harassment and discrimination
  • Promote the efficiency of public services; and express its belief in the unity of organized labour


People depend on public services; services depend on people to deliver them.

City workers touch every part of life: they fix roads, provide emergency care, test drinking water, connect us with library resources, run ice rinks, work at daycare’s, lead community workshops, and much more. We’re facing tough economic times, and that’s when we need affordable, reliable public services most.


The Okanagan Mainline District Council is made up of eighteen locals located in the interior of British Columbia.