Notification of revised ISO operating procedures 2210Z, 4420C, and 4420E; retired ISO operating procedure 7240A

The California ISO has revised the operating procedures referenced below.

2210Z Effectiveness Factors - All, version 29.2, effective Nov. 1, 2024.

Defined Real-Time Contingency Analysis (RTCA) in Note just after Table of Contents.
6610: Updated Generation Effectiveness Factors (GEF) values for winter season, Tables 3A to 3D – version 16.1, effective 11/01/24.
Updated version and date only for the following:
- 6110: version 14.1, effective 11/01/24
- 6310: version 26.2, effective 10/10/24
- 6410: version 11.1, effective 11/01/24
- 7110: version 13.3, effective 9/12/24
- 7120: version 9.7, effective 9/05/24
- 7240: version 14.2, effective 11/01/24
- 7340: corrected date to effective 6/06/24
- 7410: version 9.6, effective 11/01/24
- 7420: version 6.4, effective 7/26/24
- 7430: version 27.1, effective 7/25/24
- 7440: version 4.0, effective 10/28/24
- 7690: version 4.5, effective 11/01/24
- 7760: version 2.1, effective 10/14/24
- 7820: version 19.3, effective 11/01/24

4420C System Emergency Notice Templates, version 11.1, effective Nov. 1, 2024.

Annual Review: Minor punctuation edits only, no other content changes.

4420E Allowable Maintenance Activities During Restricted Maintenance Operations, version 13.2, effective Nov 1, 2024.

Annual Review: Defined first instance of California ISO (CAISO), minor formatting and punctuation edits, and removed history prior to five years.

7240A Drum Area / Summit Operations (Public Version), version 7.2, effective Nov. 1, 2024.

Retired - Relevant content to be included in 7240 and Public version no longer needed.

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

Contact information

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