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 April 14, 2017, accepting proposed tariff revisions filed on March 13, 2017 and June 8, 2017 in Docket Nos. ER17-1167-000 and ER17-1167-001, effective June 22, 2017; the Commission Order issued May 21, 2017, accepting proposed tariff revisions filed on March 21, 2017 in Docket No. ER17-1279-000, effective July 1, 2017 and; the Commission Order issued June 12, 2017, accepting proposed tariff revisions filed on April 28, 2017, in Docket No. ER17-1501-000, effective July 1, 2017.

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 Web Viewer can be found here.