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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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  • IC - Initial Comment, RC - Recommendation Comment

    • PRR
    PRR Title
    BPM
    Status
    Category
    Submitted By
    Priority
    Last Action
    		Comments
    .........
    1598Clarification on OASIS posting of CAISO system demandMarket InstrumentsInitial CommentAMartin, Michael (CAISO)Normal10/25/2024 IC: 0
    RC: 0
    1597Clarifications to the high sustainable limitMarket OperationsInitial CommentAMartin, Michael (CAISO)Normal10/25/2024 IC: 2
    RC: 0
    1596WithdrawnDirect TelemetryWithdrawnANamburi, Priyanka (CAISO)Normal10/21/2024 IC: 0
    RC: 0
    15952025 Availability Assessment HoursReliability RequirementsInitial CommentBBogen, Melanie (CAISO)Normal10/25/2024 IC: 0
    RC: 0
    1594Change the load base schedule calculation used in the settlement of WEIM resource sufficiency evaluationsEnergy Imbalance MarketRecommendation CommentAMartin, Michael (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1593Change to price correction reportingMarket OperationsRecommendation CommentAMartin, Michael (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1592Addition of new price correction summary report on OASISMarket InstrumentsRecommendation CommentAMartin, Michael (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1591Updates to the hourly energy shaping factor from the price formation enhancements phase 2 initiative Market InstrumentsRecommendation CommentBMartin, Michael (CAISO)Emergency11/5/2024 IC: 0
    RC: 0
    1590Scheduling coordinator responsibilities for FERC 2222 distributed curtailed resources and distributed energy resource aggregation resourcesMarket OperationsRecommendation CommentAMartin, Michael (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1589Updating information to add the extended day ahead market to the applicationScheduling Coordinator Certification and TerminationFinal DecisionAHines, Nicole (CAISO)Emergency10/25/2024 IC: 0
    RC: 0
    1588Updates related to FERC Order 2222Demand ResponseFinal DecisionBAhmed, Hewayda (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1587Process for off grid charging indicator electionMarket OperationsFinal DecisionAMartin, Michael (CAISO)Normal11/5/2024 IC: 2
    RC: 0
    1586Addition of two new fields to GRDT to support FERC Order 2222Market InstrumentsFinal DecisionBMartin, Michael (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1585Updated BPM configuration guide for pre-calc wheel export quantity to accommodate summing over attribute which is conflicting with existing business driversSettlements and BillingFinal DecisionBAhmadi, Massih (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1584Update configuration guide for resource adequacy availability incentive mechanism pre-calc to fix limited energy storage resource adequacy generic availability and flexible obligation calculations issueSettlements and BillingFinal DecisionBAhmadi, Massih (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1583Update configuration guide for CC 6976 to implement amended LOA for COTP losses pricing for WAPA and partiesSettlements and BillingFinal DecisionBAhmadi, Massih (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1582Clarifications and clean-up for resource adequacy and supply plan uploadsReliability RequirementsFinal DecisionABogen, Melanie (CAISO)Normal11/5/2024 IC: 0
    RC: 0
    1581Rules of bidding above soft offer cap as result of price formation projectMarket InstrumentsClosedCMartin, Michael (CAISO)Emergency10/16/2024 IC: 0
    RC: 0
    1580Clarification on Resource Sufficiency Evaluation CAISO Discount interchange Award timingEnergy Imbalance MarketClosedAMartin, Michael (CAISO)Normal10/16/2024 IC: 4
    RC: 0
    1579Updating TPP Phase 3 - Process for Submitting Project Sponsor ProposalsTransmission Planning ProcessClosedARivera, Andrew (CAISO)Normal10/16/2024 IC: 0
    RC: 0
    1578Error CorrectionGenerator Interconnection and Deliverability Allocation ProceduresClosedAWilson, Daune (CAISO)Normal10/16/2024 IC: 0
    RC: 0
    1577Three unrelated corrections and clarificationsMarket OperationsClosedAMartin, Michael (CAISO)Normal10/16/2024 IC: 0
    RC: 1
    1576Addition of contingency-base flowgates to Flexible Ramping Product deployment scenariosMarket OperationsWithdrawnBMartin, Michael (CAISO)Emergency6/13/2024 IC: 0
    RC: 0
    1575Declassifying as a BPM, transition to supporting documentDefinitions and AcronymsClosedAMeredith, Jacqueline (CAISO)Normal7/30/2024 IC: 0
    RC: 0
    1574Addition of new Real Time Advisory Shutdown Instructions Customer Market Results Interface reportMarket InstrumentsClosedAMartin, Michael (CAISO)Emergency7/30/2024 IC: 0
    RC: 0
    1573Clarifications to the CAISO AET Opt-in determination and Opt-in processEnergy Imbalance MarketClosedAMartin, Michael (CAISO)Emergency7/30/2024 IC: 0
    RC: 0
    1572Updated CC 4575 GMC Scheduling Coordinator ID Charge to clarify business rule charge code exclusionsSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal7/18/2024 IC: 0
    RC: 0
    1571Updating SUC MLC PC BPM documentation for Advisory shutdown flag for MLC qualificationSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal7/18/2024 IC: 0
    RC: 0
    1570Details on new process to establish Wheeling Through Priority as part of the TSMSP projectMarket OperationsClosedCMartin, Michael (CAISO)Emergency7/18/2024 IC: 0
    RC: 0
    1569Meter data submission requirementMeteringClosedANamburi, Priyanka (CAISO)Normal7/18/2024 IC: 0
    RC: 0
    1568Clarifying tagging requirements in support of resource sufficiency evaluation Phase 2 ProjectMarket OperationsClosedAMartin, Michael (CAISO)Normal6/14/2024 IC: 0
    RC: 2
    1567Updates to constraints related to the impact of ancillary service awards on state of charge on storage resourcesMarket OperationsClosedAMartin, Michael (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1566Updating multiple BPMs for correct settlement of hybrid tie generator resourcesSettlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1565Update configuration guide for resource adequacy availability incentive mechanism pre-calc to resolve data overlap for the same resource on acquired rights and run of river resource adequacy availability incentive mechanism exemptionSettlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1564Updated real time congestion pre-calc 5.8 to accommodate a fix to show nodal congestion calculations.Settlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1563Created and updated multiple BPM configuration guides to exclude base schedule energy transfer system resource from being considered in assistance energy transfer calculations, and flags for corrections to resource sufficiency evaluations Pass/Fail scenarSettlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1562Configuration updates to the real time energy quantity pre-calc to add new WEIM pumped storage interval resource base schedule variable as an input to the settlement interval resource base schedule. Settlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1561Updated BPM Configuration guide real time net amount pre-calculation to accommodate market enhancement to ancillary services state of charge constraint.Settlements and BillingClosedBAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1560Updated BPM configuration guide for pre-calc configuration guide pre-calc wheel export quantity to accommodate transmission service and market scheduling priorities project phase 2Settlements and BillingClosedCAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1559Updating BPM existing transmission contract pre-calc transmission ownership right converted rights quantity business rule to support transmission exchange agreement initiativeSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1558New OASIS report labeled ​ATC for PWT Requests Market InstrumentsClosedBMartin, Michael (CAISO)Normal6/14/2024 IC: 0
    RC: 0
    1557Two minor updates related to multistage generators functionalityMarket OperationsClosedAMartin, Michael (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1556Clarification on hybrid dynamic limits submission requirementsMarket OperationsClosedAMartin, Michael (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1555Rules of Conduct Enhancements - Phase 1Rules of Conduct AdministrationClosedCStahl, Angelica (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1554Minor revision to Section 6.2 Estimated Aggregate Liability ComponentsCredit Management and Market ClearingClosedABilling, Christina (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1553Gen Model Data Requirements Real Reactive Capability Testing Process ClarificationTransmission Planning ProcessClosedARivera, Andrew (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1552Clarification on Number of Historical Days Used in the Mosaic Quantile RegressionMarket OperationsClosedAMartin, Michael (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1551Updating Definitions and Acronyms BPM Per Recent UpdatesDefinitions and AcronymsClosedAMeredith, Jacqueline (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1550Correction to Formatting and Links to Bring Change Management BPM CurrentBPM Change ManagementClosedAAyer, Ryan (CAISO)Normal5/16/2024 IC: 0
    RC: 0
    1549Clarification on Mosaic Quantile Regression use of historical dataMarket OperationsWithdrawnAMartin, Michael (CAISO)Normal2/23/2024 IC: 0
    RC: 0
    1548New process for establishing wheeling through priority effective June 2024Market OperationsClosedCMartin, Michael (CAISO)Emergency5/16/2024 IC: 0
    RC: 0
    1547Clarification to ancillary service state of charge constraint and bid cost recoveryMarket OperationsClosedAMartin, Michael (CAISO)Normal5/16/2024 IC: 2
    RC: 1
    1546New market active resource constraint report on customer market results interfaceMarket InstrumentsClosedAMartin, Michael (CAISO)Emergency3/13/2024 IC: 0
    RC: 0
    1545Interim Deliverability allocation to projects in operation clarificationGenerator Interconnection and Deliverability Allocation ProceduresWithdrawnAWilson, Daune (CAISO)Normal5/1/2024 IC: 0
    RC: 2
    1544Non-load serving entity power purchase agreement clarificationsGenerator Interconnection and Deliverability Allocation ProceduresClosedAWilson, Daune (CAISO)Normal5/6/2024 IC: 0
    RC: 0
    1543Site exclusivity demonstration clarificationsGenerator Interconnection and Deliverability Allocation ProceduresClosedAWilson, Daune (CAISO)Normal3/13/2024 IC: 2
    RC: 4
    1542Addition of regulation attenuation factors associated with the state of charge equation with ancillary impact Market OperationsClosedAMartin, Michael (CAISO)Emergency2/15/2024 IC: 0
    RC: 0
    1541Update to allow pseudo-tie resources to be part of co-located aggregate capability constraintsMarket OperationsClosedBMartin, Michael (CAISO)Normal1/22/2024 IC: 0
    RC: 0
    1540Updated multiple configuration guides to accommodate fixing typos in variable names which are otherwise correct in the bill determinate matrix and the settlements systemSettlements and BillingClosedAAhmadi, Massih (CAISO)Normal1/22/2024 IC: 0
    RC: 0
    1539Update to variable operation and maintenance addersMarket InstrumentsClosedAFox, Jacob (CAISO)Normal12/19/2023 IC: 0
    RC: 0
    1538Revisions to section 8.4.1 related to market participants leaving the market or incurring substantial activity level changesCredit Management and Market ClearingClosedABilling, Christina (CAISO)Normal12/19/2023 IC: 0
    RC: 0
    1537New customer market results interface report that displays Hold state-of-charge exceptional dispatch dataMarket InstrumentsClosedAMartin, Michael (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1536New payment for exceptional dispatches holding state-of-chargeMarket OperationsClosedBMartin, Michael (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1535Western energy imbalance market Washington greenhouse gas enhancementsEnergy Imbalance MarketClosedAFox, Jacob (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1534Western energy imbalance market Washington greenhouse gas enhancementsMarket InstrumentsClosedAFox, Jacob (CAISO)Normal11/15/2023 IC: 1
    RC: 1
    1533Removal of day ahead economic market priority typeMarket OperationsClosedAMartin, Michael (CAISO)Normal11/15/2023 IC: 1
    RC: 1
    1532Addition of exemption to failed-to-start rule for resourcesEnergy Imbalance MarketClosedAMartin, Michael (CAISO)Normal11/15/2023 IC: 3
    RC: 1
    1531Two new customer market results interface reports that display market priority typesMarket InstrumentsClosedAMartin, Michael (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1530Changes to ancillary awards constraints and bidding requirements implemented in energy storage enhancements track 1Market OperationsClosedCMartin, Michael (CAISO)Emergency11/15/2023 IC: 0
    RC: 0
    1529Update configuration guide for intertie deviation settlement to resolve rounding issueSettlements and BillingClosedBAhmadi, Massih (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1528Created and updated multiple BPM configuration guides to accommodate energy storage enhancements phase 1 track 2 initiativeSettlements and BillingClosedCAhmadi, Massih (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1527Changes to automated dispatch system partial accept and T-minus 20 auto approvalMarket OperationsClosedBMartin, Michael (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1526​Addition of a withdrawal limit for scheduling coordinators of battery resourcesMarket OperationsClosedAMartin, Michael (CAISO)Normal11/15/2023 IC: 1
    RC: 0
    1525Emergency assistance energy transfer opt-in processEnergy Imbalance MarketClosedBMartin, Michael (CAISO)Emergency11/15/2023 IC: 0
    RC: 0
    1524Maximum import capability enhancementsMarket InstrumentsClosedAFox, Jacob (CAISO)Normal10/20/2023 IC: 0
    RC: 0
    1523Maximum import capability enhancements policy changesReliability RequirementsClosedCBogen, Melanie (CAISO)Normal10/20/2023 IC: 0
    RC: 0
    1522Documentation only updates to the real time energy quantity pre-calculation and metered energy adjustment factor pre-calculation for the BAResBaseScheduleEnergy variable.Settlements and BillingClosedAAhmadi, Massih (CAISO)Normal10/20/2023 IC: 0
    RC: 0
    1521New process to automatically adjust day ahead electronic tags to the match the energy profile to the residual unit commitment final scheduleMarket OperationsClosedBMartin, Michael (CAISO)Emergency10/20/2023 IC: 0
    RC: 0
    1520Process for handling disconnected PNodes for congestion revenue rights purposesCongestion Revenue RightsClosedAXiao, Mengjia (CAISO)Normal11/15/2023 IC: 0
    RC: 0
    1519Utilize North to South and South to North nomograms in all real-time markets to manage physical and market flows with all lines in service and/or outage conditionsManaging Full Network ModelClosedBLiang, Vivian (CAISO)Emergency10/20/2023 IC: 1
    RC: 0
    1518Meter data retentionMeteringClosedANamburi, Priyanka (CAISO)Normal9/14/2023 IC: 0
    RC: 0
    1517Transition cost bid adjustments, reference level change request clarifications, hydro default energy bid update; wholesale electricity price calculation updateMarket InstrumentsClosedARugh, Michael (CAISO)Normal9/14/2023 IC: 0
    RC: 0
    1516Bidding limitations for non-generating resources and default energy bid changes associated with energy storage enhancements track 1Market InstrumentsClosedCRugh, Michael (CAISO)Emergency9/14/2023 IC: 1
    RC: 0
    1515Adding additional clarifying information for the 24/7 grid testScheduling Coordinator Certification and TerminationClosedAHines, Nicole (CAISO)Normal9/14/2023 IC: 0
    RC: 0
    15142024 Availability assessment hoursReliability RequirementsClosedBBogen, Melanie (CAISO)Normal8/16/2023 IC: 0
    RC: 0
    1513Full network model scope change management process updateManaging Full Network ModelClosedBLiang, Vivian (CAISO)Normal8/16/2023 IC: 0
    RC: 0
    1512Updates to battery energy storage system conversions, modification submissions, and phased generating facility clarificationGenerator ManagementClosedBJordan, Jill (CAISO)Normal8/16/2023 IC: 0
    RC: 0
    1511Clarifications regarding the use limit plan data template and opportunity costs for use-limited resourcesMarket InstrumentsClosedARugh, Michael (CAISO)Normal8/16/2023 IC: 0
    RC: 0
    1510Clarifications regarding use-limited resourcesMarket OperationsClosedARugh, Michael (CAISO)Normal8/16/2023 IC: 0
    RC: 0
    1509Use limit reached outage cardsOutage ManagementClosedAAbhyankar, Kalyani (CAISO)Normal8/16/2023 IC: 1
    RC: 0
    1508Clarifications to new use import commitment submission and processingReliability RequirementsClosedABogen, Melanie (CAISO)Emergency8/16/2023 IC: 0
    RC: 0
    1507Western energy imbalance market Washington greenhouse gas enhancementsMarket InstrumentsClosedCFox, Jacob (CAISO)Emergency7/20/2023 IC: 0
    RC: 0
    1506Western energy imbalance market Washington greenhouse gas enhancementsEnergy Imbalance MarketClosedCFox, Jacob (CAISO)Emergency7/20/2023 IC: 0
    RC: 0
    1505Refinements to penalty pricing improvements identified from last summerMarket OperationsClosedAMartin, Michael (CAISO)Emergency7/20/2023 IC: 1
    RC: 0
    1502Clarifications to component level dispatchable flagMarket InstrumentsClosedARugh, Michael (CAISO)Normal7/20/2023 IC: 0
    RC: 0
    1501Updates details and requirements for hybrid dynamic limitsMarket OperationsClosedARugh, Michael (CAISO)Normal7/20/2023 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 InstrumentsClosedBMartin, Michael (CAISO)Normal7/20/2023 IC: 1
    RC: 0
    1499Updated BPM configuration guide for charge code 701 forecasting service fee 5.6 to accommodate hybrid 2C initiativeSettlements and BillingClosedBAhmadi, Massih (CAISO)Normal7/20/2023 IC: 0
    RC: 0
    1498Assistance energy transferEnergy Imbalance MarketClosedCMartin, Michael (CAISO)Emergency8/16/2023 IC: 8
    RC: 0
    1497Interchange tagging changes related to resource sufficiency evaluation enhancement phase 2 projectMarket OperationsClosedBMartin, Michael (CAISO)Normal7/20/2023 IC: 3
    RC: 1
    Total No. of Proposed Revision Requests = 1531
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