The California ISO has revised the operating procedure referenced below.
3100 Establishing System Operating Limits for the Operations Horizon, version 6.4, effective Sept. 20, 2019
Section 3.6.3: Updated San Diego Gas & Electric (SDGE) references (Transfer banks to return the loading below normal rating directly from the emergency rating).
ISO Operating Procedures - http://www.caiso.com/rules/Pages/OperatingProcedures/Default.aspx