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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
    .........
    15142024 Availability assessment hoursReliability RequirementsInitial CommentBSchimschal, Melanie (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1513Full network model scope change management process updateManaging Full Network ModelInitial CommentBLiang, Vivian (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1512Updates to battery energy storage system conversions, modification submissions, and phased generating facility clarificationGenerator ManagementInitial CommentBJordan, Jill (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1511Clarifications regarding the use limit plan data template and opportunity costs for use-limited resourcesMarket InstrumentsInitial CommentARugh, Michael (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1510Clarifications regarding use-limited resourcesMarket OperationsInitial CommentARugh, Michael (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1509Use limit reached outage cardsOutage ManagementInitial CommentAAbhyankar, Kalyani (CAISO)Normal5/30/2023 IC: 0
    RC: 0
    1508Clarifications to new use import commitment submission and processingReliability RequirementsInitial CommentASchimschal, Melanie (CAISO)Emergency5/24/2023 IC: 0
    RC: 0
    1507Western energy imbalance market Washington greenhouse gas enhancementsMarket InstrumentsRecommendation CommentCFox, Jacob (CAISO)Emergency5/30/2023 IC: 0
    RC: 0
    1506Western energy imbalance market Washington greenhouse gas enhancementsEnergy Imbalance MarketRecommendation CommentCFox, Jacob (CAISO)Emergency5/30/2023 IC: 0
    RC: 0
    1505Refinements to penalty pricing improvements identified from last summerMarket OperationsRecommendation CommentAMartin, Michael (CAISO)Emergency5/31/2023 IC: 1
    RC: 0
    1502Clarifications to component level dispatchable flagMarket InstrumentsRecommendation CommentARugh, Michael (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1501Updates details and requirements for hybrid dynamic limitsMarket OperationsRecommendation CommentARugh, Michael (CAISO)Normal5/31/2023 IC: 1
    RC: 0
    1500Open access same time information system and CAISO market results interface report changes for resource sufficiency evaluation enhancements phase 2 projectMarket InstrumentsRecommendation CommentBMartin, Michael (CAISO)Normal5/31/2023 IC: 1
    RC: 0
    1499Updated BPM configuration guide for charge code 701 forecasting service fee 5.6 to accommodate hybrid 2C initiativeSettlements and BillingRecommendation CommentBAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1498Assistance energy transferEnergy Imbalance MarketInitial CommentCMartin, Michael (CAISO)Emergency5/30/2023 IC: 5
    RC: 0
    1497Interchange tagging changes related to resource sufficiency evaluation enhancement phase 2 projectMarket OperationsRecommendation CommentBMartin, Michael (CAISO)Normal5/31/2023 IC: 3
    RC: 1
    1496Updating fuel region pricesMarket InstrumentsRecommendation CommentCGridwell Consulting for WPTF (Western Power Trading Forum)Normal5/31/2023 IC: 0
    RC: 0
    1495Updated multiple BPM configuration guides to accommodate market services production allocating one sided charge or payment neutrality adjustments to measured demand in charge code 8989 and charge code 8999 while also achieving revenue neutralitySettlements and BillingRecommendation CommentBAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1494Updated charge group pre-calculation metered subsystems deviation penalty quantity to accurately account for resources with spinning/non-spinning capacity dispatches outside contingency intervalsSettlements and BillingRecommendation CommentBAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1493Updated BPM configuration guide for charge group pre-calculation system resource deemed delivered energy quantity to accommodate logical meter calculator scenarios where the electronic tag is curtailed mid-hourSettlements and BillingRecommendation CommentBAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1492Created two new charge codes in accordance with the resource sufficiency evaluation enhancement phase 2 initiativeSettlements and BillingRecommendation CommentBAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1491Updated BPM configuration guide for pre-calculation real time market net amount v5.37 to accommodate ancillary service state of charge constraint initiativeSettlements and BillingRecommendation CommentCAhmadi, Massih (CAISO)Normal5/31/2023 IC: 0
    RC: 0
    1490Clarification for pumping load bidding ruleReliability RequirementsFinal DecisionASchimschal, Melanie (CAISO)Normal5/31/2023 IC: 1
    RC: 0
    1489Error correctionsGenerator Interconnection and Deliverability Allocation ProceduresClosedAWilson, Daune (CAISO)Normal5/17/2023 IC: 0
    RC: 0
    1487Congestion revenue rights BPM updates on full network model and credit holding requirementsCongestion Revenue RightsClosedBXiao, Mengjia (CAISO)Normal5/17/2023 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1447
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