Fabio
99 lines
7.7 KiB
Markdown
99 lines
7.7 KiB
Markdown
---
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type: "Bill"
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title: "Groundwater adjudication."
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description: "(1) Existing law establishes procedures for the comprehensive adjudication of groundwater rights in civil court. Under existing law, if the court finds that claims of right to extract or divert only minor quantities of water, as defined, would not have a material effect on the groundwater rights of other parties, the court may exempt those claimants from the proceedings, except as specified. Existing law further prescribes that a judgment in a comprehensive adjudication to determine rights to extract groundwater in a basin is not binding on, among others, claimants whose claims have been exempted."
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jurisdiction: "us/states/ca"
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legislature: "California Legislature"
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session: "20252026"
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identifier: "AB 1466"
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citation: "California AB 1466 (20252026)"
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classification: ["bill"]
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subjects: ["Groundwateradjudication"]
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status: "enacted"
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primary_sponsors: ["Hart"]
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version_count: 8
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action_count: 28
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vote_count: 8
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first_action: "2025-02-21"
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last_action: "2025-10-11"
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source: "openstates"
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source_identifier: "ocd-bill/3d91e1a1-d18b-4740-b769-325399807944"
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source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1466"
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source_hash: "dd10d0f8104c2835190ac022828f6a7cefcd78d30c11219537fbf806cd59c62c"
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vintage: "2026-07-01"
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source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
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retrieved_at: "2026-07-06"
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confidence: "reported"
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tags: ["legislation", "bill", "us-ca"]
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---
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# California AB 1466 (20252026) — Groundwater adjudication.
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(1) Existing law establishes procedures for the comprehensive adjudication of groundwater rights in civil court. Under existing law, if the court finds that claims of right to extract or divert only minor quantities of water, as defined, would not have a material effect on the groundwater rights of other parties, the court may exempt those claimants from the proceedings, except as specified. Existing law further prescribes that a judgment in a comprehensive adjudication to determine rights to extract groundwater in a basin is not binding on, among others, claimants whose claims have been exempted.
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## Version chain
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The bill's text revisions, in order — the diff chain from filing to enrollment.
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1. **02/21/25 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146699INT)
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2. **04/01/25 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146698AMD)
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3. **06/26/25 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146697AMD)
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4. **07/17/25 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146696AMD)
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5. **09/04/25 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146695AMD)
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6. **10/11/25 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146693CHP)
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7. **AB1466** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1466)
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8. **09/15/25 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1466&version=20250AB146694ENR)
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## Votes
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- Do pass, but first be re-referred to the Committee on [Judiciary] — **5–2** (pass) · upper
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- Do pass and be re-referred to the Committee on [Appropriations] — **9–3** (pass) · lower
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- 3rd Reading AB1466 Hart By Laird — **35–5** (pass) · upper
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- AB 1466 Hart Concurrence in Senate Amendments — **69–1** (pass) · lower
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- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **11–2** (pass) · upper
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- Do pass. — **11–4** (pass) · lower
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- Do pass and be re-referred to the Committee on [Judiciary] — **9–4** (pass) · lower
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- AB 1466 Hart Assembly Third Reading — **50–20** (pass) · lower
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## Sponsors
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- Hart — primary (person)
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## Timeline
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The legislative action history — every referral, reading, and vote.
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- **2025-02-21** Introduced. To print. `introduction`
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- **2025-02-22** From printer. May be heard in committee March 24.
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- **2025-02-24** Read first time. `reading-1`
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- **2025-03-17** Referred to Coms. on W. P., & W. and JUD. `referral-committee`
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- **2025-04-01** From committee chair, with author's amendments: Amend, and re-refer to Com. on W. P., & W. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
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- **2025-04-02** Re-referred to Com. on W. P., & W. `referral-committee`
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- **2025-04-09** From committee: Do pass and re-refer to Com. on JUD. (Ayes 9. Noes 4.) (April 8). Re-referred to Com. on JUD. `committee-passage, committee-passage-favorable, referral-committee`
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- **2025-04-22** From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 3.) (April 22). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
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- **2025-05-07** From committee: Do pass. (Ayes 11. Noes 4.) (May 7). `committee-passage, committee-passage-favorable`
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- **2025-05-08** Read second time. Ordered to third reading. `reading-1, reading-2`
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- **2025-06-04** Read third time. Passed. Ordered to the Senate. (Ayes 50. Noes 20. Page 2074.) `passage, reading-1, reading-3`
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- **2025-06-05** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
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- **2025-06-18** Referred to Coms. on N.R. & W. and JUD. `referral-committee`
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- **2025-06-26** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on N.R. & W. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
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- **2025-07-09** From committee: Do pass and re-refer to Com. on JUD. (Ayes 5. Noes 2.) (July 8). Re-referred to Com. on JUD. `committee-passage, committee-passage-favorable, referral-committee`
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- **2025-07-16** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 11. Noes 2.) (July 15). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
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- **2025-07-17** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
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- **2025-08-13** In committee: Hearing postponed by committee.
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- **2025-08-25** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
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- **2025-08-26** Read second time. Ordered to third reading. `reading-1, reading-2`
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- **2025-09-04** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
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- **2025-09-08** Read second time. Ordered to third reading. `reading-1, reading-2`
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- **2025-09-10** Read third time. Passed. Ordered to the Assembly. (Ayes 35. Noes 5. Page 2823.). `passage, reading-1, reading-3`
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- **2025-09-10** In Assembly. Concurrence in Senate amendments pending.
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- **2025-09-11** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 69. Noes 1. Page 3331.). `amendment-passage, committee-passage-favorable`
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- **2025-09-23** Enrolled and presented to the Governor at 4 p.m.
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- **2025-10-11** Approved by the Governor. `executive-signature`
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- **2025-10-11** Chaptered by Secretary of State - Chapter 643, Statutes of 2025. `became-law`
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## Source
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OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/3d91e1a1-d18b-4740-b769-325399807944`. Confidence: reported (aggregated from official California legislature records).
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