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 Commission Orders issued January 17, 2017 and May 19, 2017, accepting proposed tariff revisions filed on November 18, 2016 and February 15, 2017, in Docket Nos. ER17-386-000 and -001, effective January 17, 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.