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 Orders issued November 19, 2015, accepting proposed language filed July 13, 2015 and July 14, 2015 effective January 1, 2014 and July 13, 2015 under Docket Nos. ER13-1942-001 and ER13-1946-001.

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.