The California ISO's change management process facilitates the transparent exchange of ideas and information when the ISO considers modifications to its Business Practice Manuals (BPMs). Use this site to submit and view Proposed Revision Requests (PRRs) and their statuses and to access the BPM library.


  • The purpose of BPMs is to set forth business practices that implement the ISO tariff. The ISO conducts a yearly policy initiative roadmap process to consider and rank initiatives.
  • Policy changes submitted though the PRR process will be referred to the policy initiative road map process.  Each subject area in a BPM is based on enabling language in the ISO tariff.
  • The PRR process cannot be used to introduce changes that are not supported by existing tariff authority.
PRR Title Filter
  • All the columns can be Sorted/Filtered except for the 'Comments' column.
  • Click on the PRR Number to view the complete details of the PRR.
  • To view the complete title mouse hover on the PRR Title field.
  • IC - Initial Comment, RC - Recommendation Comment

    • PRR
    PRR Title
    BPM
    Status
    Category
    Submitted By
    Priority
    Last Action
    		Comments
    .........
    1402Updates to after-market cost recovery and reference level calculator change requests for Extremely Long Start resourcesMarket InstrumentsInitial CommentAMartin, Michael (CAISO)Normal1/25/2022 IC: 0
    RC: 0
    1401Additional information for CRR holders terminating agreements Candidate CRR Holder RegistrationRecommendation CommentAHines, Nicole (CAISO)Normal1/25/2022 IC: 0
    RC: 0
    1400Revisions to section 8.4.1 related to market participants leaving the market or incurring substantial activity level changesCredit Management and Market ClearingRecommendation CommentABilling, Christina (CAISO)Normal1/26/2022 IC: 0
    RC: 0
    1399Updated multiple BPM configuration guides to accommodate settling WAPA/TANC Contract 05-SNR-00869Settlements and BillingPending Final DecisionBCorona, Brenda (CAISO)Normal1/27/2022 IC: 0
    RC: 0
    1398Update BPM configuration guides to support the day ahead nodal pricing model phase 2 ancillary services InitiativeSettlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/27/2022 IC: 0
    RC: 0
    1397Updates to BPM for tariff amendment adjusting the meaning of business day (FERC Filing ER21-2854-000)Settlements and BillingFinal DecisionACorona, Brenda (CAISO)Normal1/26/2022 IC: 0
    RC: 0
    1396Base schedule submission deadlineMarket OperationsPending Final DecisionBBatakji, Jamal (CAISO)Emergency1/25/2022 IC: 0
    RC: 0
    1395Interchange transactions and electronic taggingMarket OperationsPending Final DecisionABatakji, Jamal (CAISO)Normal1/25/2022 IC: 0
    RC: 0
    1394Updated BPM Configuration guide for charge code 4575 to clarify business rule 4.1 exclusions and variable name.Settlements and BillingFinal DecisionACorona, Brenda (CAISO)Emergency1/27/2022 IC: 0
    RC: 0
    1393Variable operations and maintenance cost changesMarket InstrumentsClosedABatakji, Jamal (CAISO)Normal1/21/2022 IC: 1
    RC: 1
    1392Minor language update to BPM for Generator ManagementGenerator ManagementClosedAJordan, Jill (CAISO)Normal1/21/2022 IC: 0
    RC: 0
    1391Transmission plan deliverability clarificationGenerator Interconnection and Deliverability Allocation ProceduresClosedAWilson, Daune (CAISO)Normal1/21/2022 IC: 2
    RC: 0
    1390Eligible intermittent resource definition updateDirect TelemetryClosedANamburi, Priyanka (CAISO)Normal1/21/2022 IC: 0
    RC: 0
    1389Excluding outlier data from energy imbalance market uncertainty histogramsEnergy Imbalance MarketClosedABatakji, Jamal (CAISO)Normal12/16/2021 IC: 0
    RC: 1
    1388Market data availability on market user interfaceCongestion Revenue RightsClosedCFox, Jacob (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1387Hybrid resources phase 2 updates related to Market Operation BPMMarket OperationsClosedCBatakji, Jamal (CAISO)Emergency12/16/2021 IC: 0
    RC: 0
    1386Hybrid resources phase 2 updates related to Market Instrument BPMMarket InstrumentsClosedCBatakji, Jamal (CAISO)Emergency12/16/2021 IC: 0
    RC: 0
    1385Scheduling coordinator update for document submission processScheduling Coordinator Certification and TerminationClosedAHines, Nicole (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1384Additional information for congestion revenue rights holder self-terminationCandidate CRR Holder RegistrationClosedAHines, Nicole (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1383Update regulation no pay pre-calculation to change data source for dispatch operating target calculation quantitySettlements and BillingClosedBCorona, Brenda (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1382Energy storage and distributed resources phase 4 updates related to market operations BPMMarket OperationsClosedCBatakji, Jamal (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1381Energy storage and distributed resources phase 4 updates related to market instrument BPMMarket InstrumentsClosedCBatakji, Jamal (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1380High sustainable limitDirect TelemetryClosedCNamburi, Priyanka (CAISO)Normal12/16/2021 IC: 0
    RC: 0
    1379Changes to section 10.4.5 schedule of request/deadlineTransmission Planning ProcessClosedABillinton, Jeffrey (CAISO)Emergency11/15/2021 IC: 0
    RC: 0
    1378Updated CC 64770 real time imbalance energy offset energy imbalance market to accurately and properly align with non-California balancing authority areas will get greenhouse gas adjustments.Settlements and BillingClosedBCorona, Brenda (CAISO)Normal11/15/2021 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1340
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