NEPGA filed a protest of ISO-NE’s response to the FERC Office of Energy Market Regulation’s (OEMR) deficiency letter served on ISO-NE, pursuant to which the OEMR ordered ISO-NE to file certain information to supplement its December 2015 filing of Tariff changes defining ISO-NE’s proposal to significantly change the Forward Capacity Market rules governing resource retirements (No. ER16-551).