republic-os/legislation/us/states/ca/20212022/ab-1164.md

---
type: "Bill"
title: "Dams and reservoirs: exclusions: publicly owned or operated regulating basins."
description: "Existing law requires the Department of Water Resources to supervise the maintenance and operation of dams and reservoirs as necessary to safeguard life and property. Existing law requires the department to adopt, by regulation, a schedule of fees to cover the department's costs in carrying out the supervision of dam safety. Existing law excludes certain obstructions from being considered a dam, including a barrier that is not across a stream channel, watercourse, or natural drainage area and that has the principal purpose of impounding water for agricultural use."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "AB 1164"
citation: "California AB 1164 (20212022)"
classification: ["bill"]
subjects: ["Dams and reservoirs: exclusions: publicly owned or operated regulating basins."]
status: "enacted"
primary_sponsors: ["Flora"]
version_count: 7
action_count: 29
vote_count: 9
first_action: "2021-02-18"
last_action: "2022-09-30"
source: "openstates"
source_identifier: "ocd-bill/04f8d9a8-11fb-4494-93d5-43b010f76185"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB1164"
source_hash: "f733193fff4fb8203f33c4bb2ba0d482067eb833c7bd159a0eb2915dd5fc6e22"
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 1164 (20212022) — Dams and reservoirs: exclusions: publicly owned or operated regulating basins.

Existing law requires the Department of Water Resources to supervise the maintenance and operation of dams and reservoirs as necessary to safeguard life and property. Existing law requires the department to adopt, by regulation, a schedule of fees to cover the department's costs in carrying out the supervision of dam safety. Existing law excludes certain obstructions from being considered a dam, including a barrier that is not across a stream channel, watercourse, or natural drainage area and that has the principal purpose of impounding water for agricultural use.

## Version chain

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

1. **02/18/21 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116499INT)
2. **03/22/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116498AMD)
3. **05/04/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116497AMD)
4. **05/23/22 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116496AMD)
5. **09/30/22 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116494CHP)
6. **AB1164** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB1164)
7. **09/02/22 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1164&version=20210AB116495ENR)

## Votes

- With recommendation: That Senate amendments be concurred in. — **12–0** (pass) · lower
- [Final] hearing set for [06-01-2022]: Failed passage in Committee. Reconsideration granted — **7–0** (pass) · upper
- AB 1164 Flora Concurrence in Senate Amendments — **76–1** (pass) · lower
- 3rd Reading AB1164 Flora By Caballero — **32–7** (pass) · upper
- Do pass. To Consent Calendar. — **16–0** (pass) · lower
- AB 1164 Flora Consent Calendar Second Day — **76–0** (pass) · lower
- Do pass as amended and be re-referred to the Committee on [Appropriations] — **15–0** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] — **4–1** (fail) · upper
- Do pass, but first be re-referred to the Committee on [Appropriations] — **6–0** (pass) · upper

## Sponsors

- Flora — primary (person)

## Timeline

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

- **2021-02-18** Read first time. To print. `reading-1`
- **2021-02-19** From printer. May be heard in committee March 21.
- **2021-03-04** Referred to Com. on W.,P., & W. `referral-committee`
- **2021-03-22** 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`
- **2021-03-23** Re-referred to Com. on W.,P., & W. `referral-committee`
- **2021-05-03** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 15. Noes 0.) (April 26). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2021-05-04** Read second time and amended. `amendment-passage, reading-1, reading-2`
- **2021-05-05** Re-referred to Com. on APPR. `referral-committee`
- **2021-05-12** From committee: Do pass. To Consent Calendar. (Ayes 16. Noes 0.) (May 12). `committee-passage, committee-passage-favorable`
- **2021-05-13** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2021-05-20** Read third time. Passed. Ordered to the Senate. (Ayes 76. Noes 0. Page 1471.) `passage, reading-1, reading-3`
- **2021-05-20** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2021-06-03** Referred to Com. on N.R. & W. `referral-committee`
- **2021-06-09** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2021-07-01** In committee: Set, second hearing. Hearing canceled at the request of author.
- **2022-05-23** 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`
- **2022-06-01** In committee: Set, final hearing. Failed passage. Reconsideration granted.
- **2022-06-28** From committee: Do pass and re-refer to Com. on APPR. (Ayes 6. Noes 0.) (June 28). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2022-08-01** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2022-08-02** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2022-08-24** Read third time. Passed. Ordered to the Assembly. (Ayes 32. Noes 7. Page 5096.). `passage, reading-1, reading-3`
- **2022-08-24** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 26 pursuant to Assembly Rule 77.
- **2022-08-25** Assembly Rule 77(a) suspended.
- **2022-08-25** Re-referred to Com. on W.,P., & W. pursuant to Assembly Rule 77.2. `referral-committee`
- **2022-08-30** From committee: That the Senate amendments be concurred in. (Ayes 12. Noes 0.) (August 30). `committee-passage`
- **2022-08-31** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 76. Noes 1.). `amendment-passage, committee-passage-favorable`
- **2022-09-13** Enrolled and presented to the Governor at 4 p.m.
- **2022-09-30** Approved by the Governor. `executive-signature`
- **2022-09-30** Chaptered by Secretary of State - Chapter 943, Statutes of 2022. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/04f8d9a8-11fb-4494-93d5-43b010f76185`. Confidence: reported (aggregated from official California legislature records).