ISO Logo
Market Notice
January 7, 2019


Request for Comment


Business Practice Manuals

BPM Change Management: Proposed Revision Requests and Updated BPMs Posted as of 1/7/19


This notice announces the posting and beginning of stakeholder review periods for new Proposed Revision Requests (PRRs) to Business Practice Manuals (BPM), ISO recommendations, and final decisions on previously submitted PRRs. The ISO posted updated versions of Business Practice Manuals (BPM) on its BPM change management website.


The California ISO has posted new proposed revision requests reflecting edits to Business Practice Manuals (BPM). Revised BPMs that have completed the BPM change management process are posted in the BPM Library.


All PRRs and related activity are publicly available through the BPM change management site at


The PRRs listed below have an open 10-business day comment or appeal period from January 7, 2019 through January 22.


New PRRs

PRR 1116 Market Operations BPM, Imbalance conformance enhancement

PRR 1117 Energy Imbalance Market BPM, Imbalance conformance enhancement

PRR 1118 Market Instruments BPM, Emergency, FERC order 844 reports


ISO Recommendations

There are no new PRRs to report.


ISO Final Decisions

There are no new PRRs to report.


BPM updates

The ISO has posted a document reflecting BPMs updated in 2018. Click here to view the document, which is located on the ISO website at


All BPMs are viewable in the BPM Library.


The ISO may unilaterally make and implement revisions to the BPMs in emergency circumstances, as set forth in Sections 22.4.3 and 22.11 of the ISO Tariff and in Section 2.6 of the Business Practice Manual for BPM Change Management. An emergency PRR will continue through the BPM change management stakeholder process to obtain stakeholder input on the revisions and make other recommendations, as necessary.


Please note that affected parties must register in order to submit a PRR or written comments.


Julia Payton at 916-608-1133 or

Engage with us!
isoball twitterball RSSball Facebookball YouTube
Daily Briefing
Sign up
Daily Briefing
ISO Today
ISO Today
Flex Alerts
Sign up
Flex Alerts

California Independent System Operator | P.O. Box 639014 | Folsom, CA 95630 | United States