The California ISO has revised the Transmission Reliability Margin Implementation Document (MOD-008-1), version 3.1 effective May 4, 2023. The document is available on the Requirements and guidelines webpage, under the NERC compliance heading.
Please contact the ISO Procedure Control Desk at ProcedureControl@caiso.com or RajaShekar Thappetaobula at 916-608-1209 or RThappetaobula@caiso.com with any questions.