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
  • All the columns can be Sorted/Filtered except for the 'Comments' column.
  • 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
    .........
    1318New telemetry requirements due to NERC standard BAL-003-1.1Direct TelemetryInitial CommentBNamburi, Priyanka (CAISO)Normal1/13/2021 IC: 0
    RC: 0
    1317Clarifying language for market operations BPM for resource adequacy bidding obligationMarket OperationsInitial CommentABatakji, Jamal (CAISO)Normal1/12/2021 IC: 0
    RC: 0
    1316Clarification on PRR 1280 StatusReliability RequirementsInitial CommentCSchimschal, Melanie (CAISO)Emergency1/12/2021 IC: 0
    RC: 0
    1315Commitment cost enhancement tariff clarification process policy initiativeReliability RequirementsInitial CommentCSchimschal, Melanie (CAISO)Normal1/12/2021 IC: 0
    RC: 0
    1314Commitment cost enhancement phase 3 Tariff clarification for hydro unitsOutage ManagementInitial CommentAAbhyankar, Kalyani (CAISO)Normal1/12/2021 IC: 0
    RC: 0
    1313Clean-up language_section 2.5.5 for PRR 1136Market OperationsInitial Stakeholder MeetingABatakji, Jamal (CAISO)Emergency1/6/2021 IC: 0
    RC: 0
    1312Following trajectory between dispatch operating targetMarket OperationsInitial CommentABatakji, Jamal (CAISO)Normal1/12/2021 IC: 1
    RC: 0
    1311Intertie multi-stage generating resources modeling for energy imbalance market participating resourcesEnergy Imbalance MarketInitial Stakeholder MeetingBBatakji, Jamal (CAISO)Emergency1/6/2021 IC: 0
    RC: 0
    1310New requirements for hybrid resources and transport layer securityDirect TelemetryInitial Stakeholder MeetingCNamburi, Priyanka (CAISO)Emergency1/6/2021 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 ProceduresStakeholder Meeting on RecommendationATavares, Phelim (CAISO)Normal1/20/2021 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 BillingStakeholder Meeting on RecommendationACorona, Brenda (CAISO)Emergency1/20/2021 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 BillingStakeholder Meeting on RecommendationACorona, Brenda (CAISO)Emergency1/20/2021 IC: 0
    RC: 0
    1306Updated BPM configuration guides for enforcement protocol charge group charge code 1591, 1592, and 1593 to accommodate charge code 1593 associated with daily statementsSettlements and BillingStakeholder Meeting on RecommendationBCorona, Brenda (CAISO)Emergency1/20/2021 IC: 0
    RC: 0
    1305Negotiated rates new process changes for energy imbalance market BPMEnergy Imbalance MarketStakeholder Meeting on RecommendationABatakji, Jamal (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1304Negotiated rates new process changes for market instruments BPMMarket InstrumentsStakeholder Meeting on RecommendationABatakji, Jamal (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1303Intertie deviation settlementMarket OperationsStakeholder Meeting on RecommendationBBatakji, Jamal (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1302Scheduling coordinator registration fee increase and minor formattingScheduling Coordinator Certification and TerminationFinal DecisionAHines, Nicole (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1301Candidate congestion revenue rights holder registration fee increase and minor formattingCandidate CRR Holder RegistrationFinal DecisionAHines, Nicole (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1300Updated charge code 6045 over and under scheduling energy imbalance market settlement in the business rules to align with incremental price is applied for under scheduling with current configurationSettlements and BillingFinal DecisionACorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1299Updated business practice manual configuration guide for pc spin non-spin no pay quantity to accommodate a specific fast start scenario not accounted for existing active configurationSettlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1298Updated settlement and billing business practice manual for market settlements timeline transformation initiativeSettlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1297To support the excess behind the meter production initiative, configuration enhancements to account for new energy measurement type excess behind the meter production and to settle charges to non-participating load.Settlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1296Configuration adjustment to reliability must run capacity payments to ensure that residual unit commitment costs are considered in the calculation for the combined residual unit commitment and real-time market excess revenuesSettlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1295To support the slow demand response enhancement, documentation changes to include business rule for comparing resource locational marginal price to day ahead bid price for slow demand response resources in cases where exceptional dispatch type of non t-moSettlements and BillingFinal DecisionACorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    1294Update settlements configuration guides to implement day ahead nodal pricing model initiativeSettlements and BillingFinal DecisionBCorona, Brenda (CAISO)Normal1/20/2021 IC: 0
    RC: 0
    Total No. of Proposed Revision Requests = 1259
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