NYISO Tariffs

The NYISO tariffs are updated on or about the effective date listed in a FERC order. The following note is revised with each tariff update to show the related order date, filing date, docket number, and effective date:

The most recent update to these tariffs reflects the Commission Order issued January 4, 2013 and the compliance filing of August 5, 2014 accepting the proposed implementation phase-out plan regarding the elimination of the mitigation limits for 10-minute non-synchronized reserve and New York City day-ahead market spinning reserve, under Docket No. ER13-298-003.

In order to view tariff filings click here and then choose Filing in the Document Locator area.

The NYISO's Market Services Tariff and the Open Access Transmission Tariff are accessible from the eTariff Viewer.

A Quick Reference Guide for navigating the eTariff Viewer can be found here.