The California ISO has issued new Market Operations procedure MO1210 and updated Balancing Authority Area operating procedure 1210

The California ISO has issued the new Market Operations procedure referenced below and updated the Balancing Authority Area operating procedure noted below. 

MO1210 Day-Ahead Market - Effective 050126, version 1.0, effective May 1, 2026. 

New Market Operations version of CAISO 1210 procedure created and issued. 

1210 Day-Ahead Market - Effective 050126, version 20.0, effective May 1, 2026.

The California ISO’s operating procedures are available on the Operating Procedures webpage.

Please contact the CAISO/RC West Procedure Control Desk at ProcedureControl@caiso.com with any questions.