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 April 16, 2015 and January 15, 2016, accepting proposed language filed 6/1/2015, 6/3/2015, 10/12/2012, 8/7/2012, 8/6/2012 effective June 22, 2012 under Docket Nos. ER12-2414-000, 001, 002, 004.

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.