Becoming a Member 

MISO welcomes new members who want to provide input and influence the decisions made at MISO committee meetings.  

Select and complete the appropriate membership application. Prospective Transmission Owners and non-transmission owners must sign and submit the applicable agreements provided below. If you have questions please contact Client Relations.

Application for Non-Transmission Owning Members
Application for Transmission Owning Members
2017 Member Form for Updating Contact Information

NOTE: Non-member sectors (i.e., the Public Consumer Advocates, State Regulatory Authorities, and Environmental/Other Advocates of the Advisory Committee should not complete membership applications.  Such entities do not pay MISO membership fees and/or annual dues and do not vote on matters pertaining to MISO’s Board of Directors.  As such, they should directly contact sector representatives serving on the Advisory Committee.

Submitting an Application

Please use overnight delivery or Certified Mail to submit completed membership application, $15,000 check, and executed signature pages, if applicable, to:

720 City Center Drive,
Carmel, IN  46032

Additional Agreements for Transmission Owning Membership

In addition to the membership application, Transmission-Owning Members also must fully execute and submit the signature pages of the following four Agreements:

Transmission Owners Agreement

Officially called “The Agreement of Transmission Facilities Owners to Organize the Midwest Independent Transmission System Operator, Inc., A Delaware Non-Stock Corporation ("MISO Agreement").”

Signature Page of the Transmission Owners Agreement
Transmission Owners Agreement
Transmission Owners Executed Signature Pages to the Transmission Owners Agreement 

Supplemental Agreement

This multi-party contract between the MISO, International Transmission Company (“ITC”) and each of the MISO Transmission Owners amends the Appendix I Agreement between ITC and the MISO.

Signature Page of the MISO Supplemental Agreement
Supplemental Agreement with TO Signatures

Agency Agreement

By signing Appendix G of the MISO Agreement, Transmission Owning Members will authorize MISO to act as the agent in the performance of Tariff administrative duties related to "Non-transferred Transmission Facilities."

Appendix G (Agency Agreement) of the MISO Agreement

Amended Balancing Authority Agreement

This agreement, between the MISO and the MISO Local Balancing Authorities, resulted from negotiations regarding the establishment and implementation of the MISO Ancillary Services Markets.

Signature Page of the Amended Balancing Authority Agreement
Amended Balancing Authority Agreement, including signatories