---
type: "Bill"
title: "Hazardous waste: underground storage tanks."
description: "(1) Existing law requires facilities that generate, treat, or store hazardous waste to obtain a permit or other authorization from the Department of Toxic Substances Control or a unified program agency."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20252026"
identifier: "AB 1459"
citation: "California AB 1459 (20252026)"
classification: ["bill"]
subjects: ["Hazardouswaste", "undergroundstoragetanks"]
status: "enacted"
primary_sponsors: ["Committee on Environmental Safety and Toxic Materials"]
version_count: 5
action_count: 20
vote_count: 6
first_action: "2025-02-21"
last_action: "2025-07-30"
source: "openstates"
source_identifier: "ocd-bill/32ef9c06-78fc-4312-8c88-601ad1b771c9"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1459"
source_hash: "ffc729bf7480c226460aabac4549a03f450102b6fd05556ae6119f17356d7b43"
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 1459 (20252026) — Hazardous waste: underground storage tanks.

(1) Existing law requires facilities that generate, treat, or store hazardous waste to obtain a permit or other authorization from the Department of Toxic Substances Control or a unified program agency.

## Version chain

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

1. **02/21/25 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1459&version=20250AB145999INT)
2. **06/09/25 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1459&version=20250AB145998AMD)
3. **07/30/25 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1459&version=20250AB145996CHP)
4. **AB1459** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1459)
5. **07/18/25 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1459&version=20250AB145997ENR)

## Votes

- Do pass. To Consent Calendar. — **14–0** (pass) · lower
- AB 1459 Environmental Safety and Toxic Materials Consent Calendar Second Day — **75–0** (pass) · lower
- Consent Calendar 2nd AB1459 E.S. & T.M. — **35–0** (pass) · upper
- AB 1459 Environmental Safety and Concurrence in Senate Amendments By CONNOLLY — **74–0** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **7–0** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar — **6–0** (pass) · upper

## Sponsors

- Committee on Environmental Safety and Toxic Materials — primary (person)

## Timeline

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

- **2025-02-21** Introduced. To print. `introduction`
- **2025-02-22** From printer. May be heard in committee March 24.
- **2025-02-24** Read first time. `reading-1`
- **2025-03-13** Referred to Com. on E.S & T.M. `referral-committee`
- **2025-03-26** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 7. Noes 0.) (March 25). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2025-04-09** From committee: Do pass. To Consent Calendar. (Ayes 14. Noes 0.) (April 9). `committee-passage, committee-passage-favorable`
- **2025-04-10** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2025-04-24** Read third time. Passed. Ordered to the Senate. (Ayes 75. Noes 0. Page 1279.) `passage, reading-1, reading-3`
- **2025-04-24** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2025-05-07** Referred to Com. on E.Q. `referral-committee`
- **2025-06-09** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E.Q. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
- **2025-06-18** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 6. Noes 0.) (June 18). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2025-06-30** From committee: Be ordered to second reading file pursuant to Senate Rule 28.8 and ordered to Consent Calendar. `committee-passage, reading-2`
- **2025-07-01** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2025-07-03** Read third time. Passed. Ordered to the Assembly. (Ayes 35. Noes 0. Page 1933.). `passage, reading-1, reading-3`
- **2025-07-03** In Assembly. Concurrence in Senate amendments pending.
- **2025-07-17** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 74. Noes 0. Page 2594.). `amendment-passage, committee-passage-favorable`
- **2025-07-25** Enrolled and presented to the Governor at 11:30 a.m.
- **2025-07-30** Approved by the Governor. `executive-signature`
- **2025-07-30** Chaptered by Secretary of State - Chapter 89, Statutes of 2025. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/32ef9c06-78fc-4312-8c88-601ad1b771c9`. Confidence: reported (aggregated from official California legislature records).