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
    .........
    1333Updated BPM configuration guide for pc spin non-spin no pay quantity to accommodate channel 4 meter quantity being included for lesr and ddr resourcesSettlements and BillingInitial CommentACorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1332Adding attribute to support unique pricing for day ahead marginal cost of losses price in day ahead settlementSettlements and BillingInitial CommentCCorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1331Updated BPM configuration guide pc system resource deemed delivered energy quantity to accommodate system resources whose e-tags are curtailed in the middle of the trade hourSettlements and BillingInitial CommentBCorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1330Updated BPM configuration guide for CC 8835 annual resource adequacy availability incentive mechanism neutrality to accommodate adding a flexible formula streamSettlements and BillingInitial CommentBCorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1329Updated multiple BPM configuration guides to accommodate the real time settlement review - phase 1 initiativeSettlements and BillingInitial CommentCCorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1328To support the hybrid resources phase 1 initiative, configuration changes are needed to settle hybrid resources for forecasting servicesSettlements and BillingInitial CommentCCorona, Brenda (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1327Pseudo ties for shared resourcesDirect TelemetryInitial CommentCNamburi, Priyanka (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1326Pseudo ties for shared resourcesMeteringInitial CommentCNamburi, Priyanka (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1323To eliminate double penalty settlement for intertie resources that switch between 15 minute economic bid and hourly bid option within a given trade dateSettlements and BillingInitial CommentCCorona, Brenda (CAISO)Emergency2/9/2021 IC: 0
    RC: 0
    1322Update settlements configuration guide for grid management charge bid segment fee in relation to day ahead nodal pricing model initiative to correct bid segment countsSettlements and BillingInitial CommentBCorona, Brenda (CAISO)Emergency2/9/2021 IC: 0
    RC: 0
    1321Proxy demand resources dispatch informationMarket InstrumentsRecommendation CommentABatakji, Jamal (CAISO)Normal3/1/2021 IC: 1
    RC: 0
    1320Update metered subsystems deviation penalty quantity pre-calculation BPM to resolve excess behind the meter production issue for load following metered subsystemsSettlements and BillingRecommendation CommentBCorona, Brenda (CAISO)Emergency3/1/2021 IC: 0
    RC: 0
    1319Annual update an reconciliation for definitions and acronyms Definitions and AcronymsRecommendation CommentAMeredith, Jacqueline (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1318New telemetry requirements due to NERC standard BAL-003-1.1Direct TelemetryPending RecommendationBNamburi, Priyanka (CAISO)Normal2/24/2021 IC: 2
    RC: 0
    1317Clarifying language for market operations BPM for resource adequacy bidding obligationMarket OperationsRecommendation CommentABatakji, Jamal (CAISO)Normal3/1/2021 IC: 0
    RC: 0
    1316Clarification on PRR 1280 StatusReliability RequirementsRecommendation CommentCSchimschal, Melanie (CAISO)Emergency3/2/2021 IC: 0
    RC: 0
    1315Commitment cost enhancement tariff clarification process policy initiativeReliability RequirementsRecommendation CommentCSchimschal, Melanie (CAISO)Normal3/1/2021 IC: 1
    RC: 0
    1314Commitment cost enhancement phase 3 Tariff clarification for hydro unitsOutage ManagementRecommendation CommentAAbhyankar, Kalyani (CAISO)Normal3/1/2021 IC: 1
    RC: 0
    1313Clean-up language section 2.5.5 for PRR 1136Market OperationsFinal DecisionABatakji, Jamal (CAISO)Emergency3/1/2021 IC: 0
    RC: 0
    1312Following trajectory between dispatch operating targetMarket OperationsRecommendation CommentABatakji, Jamal (CAISO)Normal3/1/2021 IC: 4
    RC: 0
    1311Intertie multi-stage generating resources modeling for energy imbalance market participating resourcesEnergy Imbalance MarketFinal DecisionBBatakji, Jamal (CAISO)Emergency3/1/2021 IC: 0
    RC: 0
    1310New requirements for hybrid resources and transport layer securityDirect TelemetryFinal DecisionCNamburi, Priyanka (CAISO)Emergency3/1/2021 IC: 0
    RC: 0
    1309Clarification on point of interconnection changes, independent study process eligibility, interconnection financial security refunds, and allowable actions when projects are parkedGenerator Interconnection and Deliverability Allocation ProceduresClosedATavares, Phelim (CAISO)Normal2/17/2021 IC: 2
    RC: 0
    1308To support energy imbalance market enhancements 2020, specifically symmetrical wheeling. Configuration changes to the energy imbalance market real time marginal losses offset.Settlements and BillingClosedACorona, Brenda (CAISO)Emergency2/17/2021 IC: 0
    RC: 0
    1307Updated multiple BPM configuration guides to accommodate updating the procedure that documents the steps for submitting the transmission revenue requirement detail to the CAISO required for updating transmission access charge ratesSettlements and BillingClosedACorona, Brenda (CAISO)Emergency2/17/2021 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1272
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