Maintaining reliability of the wholesale bulk electric system in the Midwest is the core responsibility of the Midwest ISO.

In this role, the Midwest ISO evaluates requests for transmission service, identifies the most effective means of serving the demand for energy in the region, and manages the reliable flow of electricity across 13 states in the Midwest.

This responsibility requires a solid partnership with the Balancing Authorities in the region. This partnership is fostered through open communication and a shared understanding of the policies, procedures and tools that support regional reliability.

Additional information regarding these policies, procedures and tools can be found on the following pages.

Reliability Subcommittee – this member subcommittee provides direction on security coordination and tariff administration functions, develops and recommends operational procedures, and monitors progress of Transmission Owner efforts in creating interfaces and supplying necessary information to the Midwest ISO. This subcommittee reports to the Advisory Committee.

Operations Working Group – this member working group looks at Balancing Authority-specific issues and reports to the Reliability Subcommittee

Reliability Procedures and Documents – this page contains abnormal operating procedures, emergency operating procedures, and operating procedures.

Reliability Authority website – information provided on this site is available only to authorized users, per FERC Order 889, Standards of Conduct. Information ranges from reliability coordination reports to model information.

Midwest Contingency Reserve Sharing Group - this group is signatories of the Midwest CRSG Agreement which is intended to be the mechanism to share the Parties' respective Contingency Reserve resources and obligations to maintain electric system reliability.