republic-os/legislation/us/states/ca/20232024/ab-1172.md

---
type: "Bill"
title: "Integrated energy policy report: fusion energy."
description: "Existing law requires the State Energy Resources Conservation and Development Commission to undertake various actions in furtherance of meeting the state's clean energy and pollution reduction objectives. Existing law prohibits the commission from certifying a nuclear fission thermal powerplant, except for specified powerplants, and provides that a nuclear fission thermal powerplant, except for those specified powerplants, is not a permitted land use in California, unless certain conditions are met regarding, among other things, the existence of technology for the construction and operation of nuclear fuel rod reprocessing plants and of demonstrated technology or means for the disposal of high-level nuclear waste, as specified."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "AB 1172"
citation: "California AB 1172 (20232024)"
classification: ["bill"]
subjects: ["Integrated energy policy report", "fusion energy"]
status: "enacted"
primary_sponsors: ["Calderon"]
version_count: 8
action_count: 31
vote_count: 9
first_action: "2023-02-16"
last_action: "2023-10-07"
source: "openstates"
source_identifier: "ocd-bill/8c7e59a0-d4a9-41eb-91d9-8b71c0825eba"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1172"
source_hash: "e296b1b142769f3c72eab2e859b0f637ff34b0235f17b23e26b9f0ed27028ec0"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California AB 1172 (20232024) — Integrated energy policy report: fusion energy.

Existing law requires the State Energy Resources Conservation and Development Commission to undertake various actions in furtherance of meeting the state's clean energy and pollution reduction objectives. Existing law prohibits the commission from certifying a nuclear fission thermal powerplant, except for specified powerplants, and provides that a nuclear fission thermal powerplant, except for those specified powerplants, is not a permitted land use in California, unless certain conditions are met regarding, among other things, the existence of technology for the construction and operation of nuclear fuel rod reprocessing plants and of demonstrated technology or means for the disposal of high-level nuclear waste, as specified.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **02/16/23 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117299INT)
2. **03/30/23 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117298AMD)
3. **04/17/23 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117297AMD)
4. **06/27/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117296AMD)
5. **09/01/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117295AMD)
6. **10/07/23 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117293CHP)
7. **AB1172** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1172)
8. **09/18/23 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1172&version=20230AB117294ENR)

## Votes

- AB 1172 Calderon Concurrence in Senate Amendments — **80–0** (pass) · lower
- Placed on suspense file — **6–0** (pass) · upper
- Do pass as amended, and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **15–0** (pass) · lower
- Do pass and be re-referred to the Committee on [Utilities and Energy] with recommendation: To Consent Calendar — **11–0** (pass) · lower
- Do pass as amended — **7–0** (pass) · upper
- AB 1172 Calderon Assembly Third Reading — **77–0** (pass) · lower
- Special Consent AB1172 Calderon By Newman — **39–0** (pass) · upper
- Do pass. — **15–0** (pass) · lower
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **16–0** (pass) · upper

## Sponsors

- Calderon — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2023-02-16** Read first time. To print. `reading-1`
- **2023-02-17** From printer. May be heard in committee March 19.
- **2023-03-02** Referred to Coms. on NAT. RES. and U. & E. `referral-committee`
- **2023-03-28** From committee: Do pass and re-refer to Com. on U. & E. with recommendation: To Consent Calendar. (Ayes 11. Noes 0.) (March 27). Re-referred to Com. on U. & E. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-03-30** From committee chair, with author's amendments: Amend, and re-refer to Com. on U. & E. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2023-04-03** Re-referred to Com. on U. & E. `referral-committee`
- **2023-04-13** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 15. Noes 0.) (April 12). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2023-04-17** Read second time and amended. `amendment-passage, reading-1, reading-2`
- **2023-04-18** Re-referred to Com. on APPR. `referral-committee`
- **2023-04-26** In committee: Hearing postponed by committee.
- **2023-05-03** In committee: Hearing postponed by committee.
- **2023-05-17** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2023-05-18** Joint Rule 62(a), file notice suspended. (Page 1580.)
- **2023-05-18** From committee: Do pass. (Ayes 15. Noes 0.) (May 18). `committee-passage, committee-passage-favorable`
- **2023-05-18** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-05-25** Read third time. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 1763.) `passage, reading-1, reading-3`
- **2023-05-26** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2023-06-07** Referred to Com. on E., U. & C. `referral-committee`
- **2023-06-26** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 16. Noes 0.) (June 20). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2023-06-27** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2023-07-10** In committee: Referred to APPR. suspense file. `referral-committee`
- **2023-09-01** From committee: Amend, and do pass as amended. (Ayes 7. Noes 0.) (September 1). `amendment-introduction, amendment-passage, committee-passage`
- **2023-09-01** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-1, reading-2`
- **2023-09-05** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-09-08** Ordered to special consent calendar.
- **2023-09-13** Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0. Page 2767.). `passage, reading-1, reading-3`
- **2023-09-13** In Assembly. Concurrence in Senate amendments pending.
- **2023-09-14** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 80. Noes 0. Page 3551.). `amendment-passage, committee-passage-favorable`
- **2023-09-21** Enrolled and presented to the Governor at 3:30 p.m.
- **2023-10-07** Approved by the Governor. `executive-signature`
- **2023-10-07** Chaptered by Secretary of State - Chapter 360, Statutes of 2023. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8c7e59a0-d4a9-41eb-91d9-8b71c0825eba`. Confidence: reported (aggregated from official California legislature records).