Governor Gavin Newsom’s office published on Tuesday, 22 September 2026, a release stating that “yesterday” he had signed what the office called the most comprehensive data-center laws in the nation, according to the gov.ca.gov page opened for this pack. “Yesterday” in a 22 September release places the signing on Monday, 21 September. The opened governor’s page is largely a compilation of lawmaker and advocate statements rather than bill chapter text; bill-by-bill mechanism detail below is attributed to Smart Cities Dive’s 22 September report summarising the package, unless otherwise noted.
Named sponsors and quoted frames as the governor’s release lists them include Senators Jerry McNerney (SB 1168) and Steve Padilla, and Assemblymembers Rebecca Bauer-Kahan (AB 1577), Rick Chavez Zbur (AB 2383) and Diane Papan, among others. Advocacy quotes from TURN, NRDC, E2, Net-Zero California and the Public Advocates Office in the governor’s release are colour — attributed, not operative statute.
What the package does, as Smart Cities Dive reports the bills Newsom signed Monday: SB 1168 directs the California Public Utilities Commission to examine data centers’ energy use and ensure they pay for transmission and distribution upgrades and load increases. SB 886 and SB 887, per Dive citing Padilla’s office framing, require data centers to pay infrastructure upgrade and generation costs, bear a larger share of wildfire mitigation and liability costs, and undergo environmental review, and are described as ensuring local communities have a say. Dive summarises AB 1577 as requiring monthly reporting of data centers’ energy consumption and efficiency metrics to the California Energy Commission and estimated energy usage to local agencies as part of permitting. AB 2383 is summarised as incentivising onsite clean-energy resources. AB 2469 and AB 2619 are summarised as strengthening water oversight via water-supply assessments, water-scarcity plans during permitting, and statewide water reporting tied to business licences. None of the enrolled bill PDFs or chaptered statutes were opened this pack — Dive and the celebration release are secondary for operative language; signed status does not by itself confirm every provision is immediately effective if statutes set later operative dates (not checked in primary text here).
Dive also states the package requires data centers to “pay their fair share of grid update costs,” disclose water use to local governments, and give up eligibility for blanket environmental exemptions, attributing that framing to the governor’s office. Dive notes Los Angeles County’s planning director had ordered a temporary ban on large-scale AI data-center development in unincorporated areas — local context colour via Dive, not part of the state chapter package itself.
What to watch without mood: CPUC implementation of SB 1168 rate structures; first monthly CEC filings under AB 1577; how local agencies use water-supply assessments in permitting; and any industry challenges to environmental-review changes.
Floor: Newsom signed CA data-center package (gov.ca.gov 22 Sep announcing 21 Sep signing) — SB 1168 / SB 886 / SB 887 / AB 1577 / AB 2383 / AB 2469 / AB 2619 as summarised by Smart Cities Dive: grid cost responsibility, energy reporting, clean-energy incentives, water assessments/reporting, env review. No bill PDFs opened; celebration release is quote-heavy.