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 September 9, 2014 accepting the November 26, 2013 filing in Docket No. ER14-473-000 to comply with Order No. 784 that required transmission providers to amend their tariffs to include a statement that the public utility transmission provider “will take into account the speed and accuracy of regulation resources in determining reserve requirements for Regulation and Frequency Response Service, including whether a self-supplying customer has made alternative comparable arrangements.” 

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.