republic-os/legislation/us/states/ca/20192020/ab-2400.md

---
type: "Bill"
title: "Election results: risk-limiting audits."
description: "Existing law requires an elections official, during the official canvass of an election in which a voting system is used, to conduct a public manual tally of the ballots cast in 1% of the precincts chosen at random by the elections official, as specified. Existing law, operative until January 1, 2021, authorizes the use of risk-limiting audits in lieu of this 1% manual tally beginning with the March 3, 2020, statewide primary election. Under this law, a participating county is required to perform a partial risk-limiting audit of each cross-jurisdictional contest."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20192020"
identifier: "AB 2400"
citation: "California AB 2400 (20192020)"
classification: ["bill"]
subjects: ["Election results: risk-limiting audits."]
status: "enacted"
primary_sponsors: ["Quirk"]
version_count: 5
action_count: 19
vote_count: 5
first_action: "2020-02-18"
last_action: "2020-08-27"
source: "openstates"
source_identifier: "ocd-bill/00324263-f429-4d5d-a1a5-92aaca231831"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200AB2400"
source_hash: "cb9d353ef0e7998edbdb738cdf897945f8ea38cf766443df3f47bcf5177220d9"
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 2400 (20192020) — Election results: risk-limiting audits.

Existing law requires an elections official, during the official canvass of an election in which a voting system is used, to conduct a public manual tally of the ballots cast in 1% of the precincts chosen at random by the elections official, as specified. Existing law, operative until January 1, 2021, authorizes the use of risk-limiting audits in lieu of this 1% manual tally beginning with the March 3, 2020, statewide primary election. Under this law, a participating county is required to perform a partial risk-limiting audit of each cross-jurisdictional contest.

## Version chain

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

1. **02/18/20 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB2400&version=20190AB240099INT)
2. **06/03/20 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB2400&version=20190AB240098AMD)
3. **08/27/20 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB2400&version=20190AB240096CHP)
4. **AB2400** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200AB2400)
5. **08/25/20 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB2400&version=20190AB240097ENR)

## Votes

- Do pass, but first be re-referred to the Committee on [Appropriations] — **4–1** (pass) · upper
- Do pass and be re-referred to the Committee on [Appropriations] — **7–0** (pass) · lower
- Do pass as amended. To Consent Calendar. — **18–0** (pass) · lower
- 3rd Reading AB2400 Quirk By Hertzberg Urgency Clause — **40–0** (pass) · upper
- AB 2400 Quirk Consent Calendar Second Day — **77–0** (pass) · lower

## Sponsors

- Quirk — primary (person)

## Timeline

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

- **2020-02-18** Read first time. To print. `reading-1`
- **2020-02-19** From printer. May be heard in committee March 20.
- **2020-02-24** Referred to Com. on E. & R. `referral-committee`
- **2020-03-16** In committee: Hearing postponed by committee.
- **2020-05-13** From committee: Do pass and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (May 13). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2020-06-02** From committee: Amend, and do pass as amended. To Consent Calendar. (Ayes 18. Noes 0.) (June 2). `amendment-passage, committee-passage, amendment-introduction`
- **2020-06-03** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-1, reading-2`
- **2020-06-04** Read second time. Ordered to Consent Calendar. `reading-1, reading-2`
- **2020-06-10** Read third time. Urgency clause adopted. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 4800.). `passage, reading-3, reading-1`
- **2020-06-11** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2020-07-01** Referred to Com. on E. & C.A. `referral-committee`
- **2020-08-04** From committee: Do pass and re-refer to Com. on APPR. (Ayes 4. Noes 1.) (August 4). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2020-08-13** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2020-08-14** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2020-08-24** Read third time. Urgency clause adopted. Passed. Ordered to the Assembly. (Ayes 40. Noes 0. Page 4292.). `passage, reading-3, reading-1`
- **2020-08-24** In Assembly. Ordered to Engrossing and Enrolling. `committee-passage`
- **2020-08-26** Enrolled and presented to the Governor at 4:30 p.m.
- **2020-08-27** Approved by the Governor. `executive-signature`
- **2020-08-27** Chaptered by Secretary of State - Chapter 33, Statutes of 2020.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/00324263-f429-4d5d-a1a5-92aaca231831`. Confidence: reported (aggregated from official California legislature records).