***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: July 27, 2018 NOTICE TYPE: M-B070618-02 NPRR SHORT DESCRIPTION: Additional Implementation Details of NPRR819 INTENDED AUDIENCE: QSE Settlement Personnel DAY AFFECTED: August 9, 2018 LONG DESCRIPTION: On August 9, 2018, Nodal Protocol Revision Request (NPRR) 819, Modification of Non-Price Error Resettlement Thresholds and Resettlement Clean-Ups, will be implemented. This NPRR removes language referencing "data errors" for resettlement of the Day-Ahead Market (DAM) and the Real-Time Market (RTM); gives the ERCOT Board authority to direct a DAM resettlement parallel to its authority to direct RTM resettlement; removes references to undefined "declarations" of resettlements; changes the thresholds that determine a resettlement; and fixes a semantics error. ADDITIONAL INFORMATION: Pursuant to Nodal Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation. NPRR819<http://www.ercot.com/mktrules/issues/NPRR819> and associated documents can be found on the ERCOT website. CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask]<mailto:[log in to unmask]>. If you are receiving email from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com. sa