On March 3, 2026, in Docket No. ER25-2687-000, the Commission issued an order accepting PJM's compliance with Order No. 676-K to (1) incorporate by reference the latest version of the Standards for Business Practices and Communication Protocols for Public Utilities adopted by the Wholesale Electric Quadrant (WEQ) of the North American Energy Standards Board (NAESB) and (2) request a continued waiver of certain WEQ NAESB Business Practice Standards previously granted by the Commission. PJM's Tariff revisions become effective as of February 27, 2026 for the Cybersecurity Business Practice Standards in WEQ-024 and August 27, 2026 for the remainder of the Version 004 of the WEQ NAESB Business Practice Standards.

On March 2, 2026, in Docket No. ER26-795-000, the Commission issued an order accepting PJM's proposed revisions to PJM Tariff, Schedule 12-Appendix A, to incorporate cost responsibility assignments for baseline upgrades included in the recent update to the Regional Transmission Expansion Plan approved by the PJM Board of Managers on November 18, 2025. PJM's Tariff revisions become effective as of March 17, 2026.

On February 27, 2026, in Docket No. ER26-1020-000, PJM filed a motion for leave to answer and answer in response to the answer submitted by SunEnergy1, LLC and SE1 Devco, LLC (SE1) (on behalf of their affiliates Murphy Solar, LLC and Bells Solar, LLC) on February 17, 2026. The answer responds to arguments raised in SE1’s answer and reiterates that the Commission should deny waiver as it would cause harm to third parties, is not of limited scope, and does not resolve a concrete problem.