Scope
Statutes of 2026, chapter 435 (AB 2383) requires the Public Utilities Commission, in a new or existing proceeding, to require each electrical corporation to file a transmission and distribution service tariff and a generation service tariff for participating customers, defined as data centers tariffed under the article, including a share of wildfire, electrification and other societal program costs and a payment mechanism of at least 10 years for incremental generation costs. It also requires community choice aggregators and electric service providers to adopt a generation service tariff for data centers by 1 January 2028.
- Geographic scope
- California
- Jurisdiction
- State
- Authority type
- Legislature
- Issuing authority
- California Legislature
Dates
- Adopted
- 21 September 2026
- Effective
- 1 January 2027
- Scheduled expiration
- See completion condition
- Ended
- Not recorded as ended
- Completion condition
- Not yet in effect on 23 September 2026. The statute states no expiration; dates inside it are implementation deadlines, not end dates.
- Source document
- 21 September 2026
- Last checked
- 1 October 2026 (earlier than tracker date 5 October 2026; not an automatic status change)
Summary
California AB 2383, approved and chaptered on 21 September 2026 as chapter 435, adds Public Utilities Code sections on data center electric tariffs. The commission must require each electrical corporation to file transmission and distribution and generation service tariffs for participating data center customers, so those customers pay a share of wildfire, electrification and other program costs and pay for incremental generation costs for at least 10 years. Community choice aggregators and electric service providers must adopt a data center generation tariff by 1 January 2028. The act takes effect on 1 January 2027; it does not itself set a rate.
What this does not establish
- The finding was reviewed against the California Legislature official bulk-data file for 21 September 2026, saved and linked below. The primary link is the human-readable official bill page; that site disallows automated access, so the page itself was not checked automatically.
- 1 January 2027 is not printed in the chaptered text. It is taken from the official 2026 legislative calendar entry that statutes take effect 1 January 2027 under Article IV, section 8(c), and the chaptered text carries no urgency clause.
- The act directs tariffs to be filed or adopted; no tariff filed under it was opened.
- 1 January 2028 is a compliance deadline for community choice aggregators and electric service providers, not an end date.
- AB 2383 and SB 886 (chapter 438) add related sections to the same Public Utilities Code article; they are separate instruments.
Unresolved questions
- Which commission proceeding will implement the tariffs was not identified.
Relationships
Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.
- No related action is recorded.
Sources
Primary source · Reviewed alternate official source (23 September 2026)
Link status, checked 23 September 2026: The finding was checked against a saved copy of the California Legislature official 21 September 2026 bulk-data file. The human-readable primary bill page is kept for readers, but its robots.txt disallows automated review.
https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB2383
- Governor of California release announcing the signed data-center bills official announcement that the Governor signed the bill · 21 September 2026
- 2026 tentative legislative calendar (Senate) basis for the 1 January 2027 effective day of non-urgency 2026 statutes
- California Legislature official daily bulk file reviewed for this record actual official bulk evidence reviewed for this record; saved and checked as unchanged