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
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  • 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
    .........
    1389Excluding outlier data from energy imbalance market uncertainty histogramsEnergy Imbalance MarketInitial CommentABatakji, Jamal (CAISO)Normal10/4/2021 IC: 0
    RC: 0
    1388Market data availability on market user interfaceCongestion Revenue RightsInitial CommentCFox, Jacob (CAISO)Normal10/4/2021 IC: 0
    RC: 0
    1387Hybrid resources phase 2 updates related to Market Operation BPMMarket OperationsInitial CommentCBatakji, Jamal (CAISO)Emergency9/29/2021 IC: 0
    RC: 0
    1386Hybrid resources phase 2 updates related to Market Instrument BPMMarket InstrumentsInitial CommentCBatakji, Jamal (CAISO)Emergency9/29/2021 IC: 0
    RC: 0
    1385Scheduling coordinator update for document submission processScheduling Coordinator Certification and TerminationInitial CommentAHines, Nicole (CAISO)Normal9/28/2021 IC: 0
    RC: 0
    1384Additional information for congestion revenue rights holder self-terminationCandidate CRR Holder RegistrationInitial CommentAHines, Nicole (CAISO)Normal9/29/2021 IC: 0
    RC: 0
    1383Update regulation no pay pre-calculation to change data source for dispatch operating target calculation quantitySettlements and BillingInitial CommentBCorona, Brenda (CAISO)Normal10/13/2021 IC: 0
    RC: 0
    1382Energy storage and distributed resources phase 4 updates related to market operations BPMMarket OperationsInitial CommentCBatakji, Jamal (CAISO)Normal9/28/2021 IC: 0
    RC: 0
    1381Energy storage and distributed resources phase 4 updates related to market instrument BPMMarket InstrumentsInitial CommentCBatakji, Jamal (CAISO)Normal9/2/2021 IC: 0
    RC: 0
    1380High sustainable limitDirect TelemetryInitial CommentCNamburi, Priyanka (CAISO)Normal9/2/2021 IC: 0
    RC: 0
    1379Changes to section 10.4.5 schedule of request/deadlineTransmission Planning ProcessRecommendation CommentABillinton, Jeffrey (CAISO)Emergency10/18/2021 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 BillingRecommendation CommentBCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1377Update configuration guides to reflect settlement of exceptional dispatches designated as TMODEL8 and TMODEL9Settlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1376Update configuration guides to reflect Western Area Power Administration transmission exchange agreement treatmentSettlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1375Update configuration guides to reflect change in short and long start definitionsSettlements and BillingWithdrawnACorona, Brenda (CAISO)Normal8/30/2021 IC: 0
    RC: 0
    1374Updated multiple BPM configuration guides to accommodate the intertie shadow pricing resolution initiativeSettlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1373Updated multiple BPM configuration guides to accommodate the real time settlement review - phase 2 initiativeSettlements and BillingRecommendation CommentCCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1372To support the energy storage distributed energy resources phase 4 initiative, configuration changes are needed to update the settlement of bid cost recovery for non- regulation energy management limited energy resources to align with the initiativeSettlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1371Persistence forecast enhancementMarket OperationsRecommendation CommentABatakji, Jamal (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    1370Utilize a nomogram to manage unscheduled flow events in real-time dispatchManaging Full Network ModelRecommendation CommentBLiang, Vivian (CAISO)Emergency10/18/2021 IC: 0
    RC: 0
    1369Update to the maximum continuous energy limit battery point definitionDirect TelemetryRecommendation CommentAMichaelVolpePGE (Pacific Gas & Electric Company)Normal10/18/2021 IC: 0
    RC: 0
    1368Unaccounted for energy settlement election processEnergy Imbalance MarketRecommendation CommentBBatakji, Jamal (CAISO)Emergency10/18/2021 IC: 0
    RC: 0
    1367Short-long start definitions updateReliability RequirementsWithdrawnCSchimschal, Melanie (CAISO)Normal9/15/2021 IC: 0
    RC: 0
    1366Updated charge code 6456 intertie deviation settlement to exempt hour ahead scheduling process market disruption intervals from intertie deviation settlement penalty assessment and properly align with current Tariff language.Settlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Emergency10/18/2021 IC: 1
    RC: 0
    1365Updating congestion revenue rights holder registration for document submission and formattingCandidate CRR Holder RegistrationRecommendation CommentAHines, Nicole (CAISO)Normal10/18/2021 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1328
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