Subpart 5117.1 - Multi-Year Contracting 5117.104 General.5117.105 Policy.5117.106 Procedures.5117.108 Congressional notification.5117.171 Multi-year contracts for services.5117.172 Multi-year contracts for supplies.5117.174 Multi-year contracts for electricity from renewable energy sources.Parent topic: Part 5117 - Special Contracting Methods