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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.​
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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
    .........
    1450Portion of 2021 interconnection process enhancements initiative phase one changesGenerator Interconnection and Deliverability Allocation ProceduresInitial CommentCWilson, Daune (CAISO)Normal8/3/2022 IC: 0
    RC: 0
    14492021 Interconnection process enhancements phase one implementationGenerator ManagementInitial CommentCJordan, Jill (CAISO)Normal8/1/2022 IC: 0
    RC: 0
    1448Hybrid metering requirementsMeteringRecommendation CommentCNamburi, Priyanka (CAISO)Normal7/29/2022 IC: 0
    RC: 0
    1447Removal of references to reserve sharingReliability RequirementsRecommendation CommentASchimschal, Melanie (CAISO)Normal7/29/2022 IC: 0
    RC: 0
    1446Updates to the list of acceptable use limitations, clarifications to the calculation of opportunity cost adders for use-limited resourcesMarket InstrumentsRecommendation CommentAMartin, Michael (CAISO)Normal7/29/2022 IC: 0
    RC: 0
    1445Updates to the list of acceptable use limitations, clarifications to the calculation of opportunity cost adders for use-limited resourcesMarket OperationsRecommendation CommentAMartin, Michael (CAISO)Normal7/29/2022 IC: 2
    RC: 0
    1444Monitoring data clarificationDemand ResponseFinal DecisionASiegel, Elaine (CAISO)Emergency8/2/2022 IC: 0
    RC: 2
    14432023 Availability assessment hoursReliability RequirementsFinal DecisionBSchimschal, Melanie (CAISO)Normal7/29/2022 IC: 0
    RC: 0
    1442Allowing for the bidding of negative pumping costs. Market InstrumentsFinal DecisionBMartin, Michael (CAISO)Emergency7/29/2022 IC: 0
    RC: 0
    1441Ramp rate limitation for certain inverter-based resourcesMarket OperationsClosedAMartin, Michael (CAISO)Normal7/20/2022 IC: 1
    RC: 2
    1440Enhancements to the resource sufficiency evaluation tests per the resource sufficiency evaluation enhancement phase 1 projectEnergy Imbalance MarketClosedBMartin, Michael (CAISO)Emergency7/20/2022 IC: 1
    RC: 0
    1439New CAISO market results interface, and open access same time information system reports for resource sufficiency evaluation and transmission service and market scheduling priorities projectMarket InstrumentsClosedAMartin, Michael (CAISO)Emergency7/20/2022 IC: 0
    RC: 0
    1438Resource sufficiency evaluation enhancementsDemand ResponseClosedCSiegel, Elaine (CAISO)Normal7/20/2022 IC: 2
    RC: 0
    1437Updates to BPM for new settlement timelineSettlements and BillingRecommendation CommentAJerret Fischer (SRP)Normal7/29/2022 IC: 0
    RC: 0
    1436Updated BPM configuration guide for charge code 4575 to clarify business rule 4.1 exclusions covering flexible rampingSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal7/20/2022 IC: 0
    RC: 0
    1435Update configuration guide to match settlements BPM formula on virtual bid adjustment for western energy imbalance market balancing authority areas as configuredSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal7/20/2022 IC: 0
    RC: 0
    1434Reliability Demand Response Resource Bidding Enhancements in real time marketMarket InstrumentsClosedAMartin, Michael (CAISO)Normal7/20/2022 IC: 0
    RC: 0
    1433Enforcement of aggregate capability constraintsMarket OperationsClosedAMartin, Michael (CAISO)Normal7/20/2022 IC: 1
    RC: 0
    1432Addition of 15 interval threshold to regulation service minimum performance testing Market OperationsClosedAMartin, Michael (CAISO)Normal7/20/2022 IC: 1
    RC: 0
    1431Updated CC 6046 over and under scheduling western energy imbalance market allocation to accommodate resource sufficiency evaluation enhancements phase 1Settlements and BillingClosedCAhmadi, Massih (CAISO)Emergency7/20/2022 IC: 0
    RC: 0
    14302021 Contract management enhancements initiative updatesGenerator ManagementClosedCJordan, Jill (CAISO)Normal6/15/2022 IC: 0
    RC: 0
    1429Guidance for scheduling coordinators to register high priority wheelsMarket OperationsClosedAMartin, Michael (CAISO)Normal6/15/2022 IC: 1
    RC: 0
    1428Contract management enhancement updates for modifications and re-studies for serial projectsGenerator Interconnection ProceduresClosedCJordan, Jill (CAISO)Normal6/15/2022 IC: 0
    RC: 0
    1427Updated BPM for settlements and billing to accommodate aligning with annual FERC settlement process defined in charge codes 550 and 551 FERC fee settlementSettlements and BillingClosedAPeacock, Bonnie (CAISO)Normal6/15/2022 IC: 0
    RC: 0
    1426Update configuration guides to support short-long start unit definitions update initiativeSettlements and BillingClosedAPeacock, Bonnie (CAISO)Normal6/15/2022 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1386
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