MISO serves as a transparent and neutral facilitator for the transmission service planning, resulting in fair and open access to the region's transmission system. Market participants and transmission customers may initiate long-term firm transmission service (one year or longer) through MISO's OASIS. Our Operations Planning Group reviews all long-term firm transmission service requests and notifies customers about their preliminary disposition. 

Module B of the MISO Tariff provides primary terms and conditions for the scheduling rights (SR). This and other Tariff attachments and schedules, as well as related business practices manuals (BPMs), guide MISO's process for analyzing, approving and rejecting transmission service requests. Review the frequently asked questions below for additional details about MISO's long-term transmission service request process. 


Facility Impact Assessment






System Impact Study


Tariff/Tariff Attachments