***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: February 18, 2019 NOTICE TYPE: M-B012519-03 NPRR SHORT DESCRIPTION: Update – Revised Date for Implementation of NPRR833 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: March 1, 2019 LONG DESCRIPTION: On March 1, 2019, Protocol language related to Nodal Protocol Revision Request (NPRR) 833, Modify PTP Obligation Bid Clearing Change, will be implemented. 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. NPRR833<http://www.ercot.com/mktrules/issues/NPRR833> and associated documents can be found on the ERCOT website. Please review the ERCOT website for previous Market Notices<http://www.ercot.com/services/comm/mkt_notices/archives/search?nc=all&per=&pg=&q=M-B012519&sort=> related to this subject. 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 a public 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