COMPASS periodically enters into formal agreements with other agencies in the region. These Memorandums of Understanding (MOUs) are listed here.

• DEQ Air Quality Agreement between Division of Environmental Quality and Ada Planning Association (currently COMPASS).
  
• MPO Surface Transportation Program Urban Funds Distribution Agreement between Idaho Transportation Department, Community Planning Association, Bannock Planning Organization, Bonneville Metropolitan Planning Organization, and Local Highway Technical Assistance Council.
  
• Transit Planning Agreement between ValleyRide and Community Planning Association.
  
• Memorandum of Understanding 04-01 Operation and Financing of the Metropolitan Planning Organization in the Boise and Nampa Urbanized Areas