republic-os/legislation/us/states/ca/20232024/ab-659.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Cancer Prevention Act.	Existing law prohibits the governing authority of a school or other institution from unconditionally admitting any person as a pupil of any private or public elementary or secondary school, childcare center, day nursery, nursery school, family daycare home, or development center, unless prior to their admission to that institution they have been fully immunized. Existing law requires the documentation of immunizations for certain diseases, including, among others, measles, mumps, pertussis, and any other disease deemed appropriate by the State Department of Public Health, as specified. Existing law authorizes certain exemptions from these provisions subject to specified conditions.	us/states/ca	California Legislature	20232024	AB 659	California AB 659 (20232024)	bill	Cancer Prevention Act	enacted	Aguiar-Curry	10	33	9	2023-02-09	2023-10-13	openstates	ocd-bill/bea74a03-3778-46bf-8401-2a5909fc0f19	http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB659	3eeacd5acbe2e35db163e9f4d03bedd88d856d5ef731a79974994f7df7e3bf73	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-ca

California AB 659 (20232024) — Cancer Prevention Act.

Existing law prohibits the governing authority of a school or other institution from unconditionally admitting any person as a pupil of any private or public elementary or secondary school, childcare center, day nursery, nursery school, family daycare home, or development center, unless prior to their admission to that institution they have been fully immunized. Existing law requires the documentation of immunizations for certain diseases, including, among others, measles, mumps, pertussis, and any other disease deemed appropriate by the State Department of Public Health, as specified. Existing law authorizes certain exemptions from these provisions subject to specified conditions.

Version chain

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

1. 02/09/23 - Introduced (filed) — source
2. 02/17/23 - Amended Assembly (committee substitute) — source
3. 03/21/23 - Amended Assembly (committee substitute) — source
4. 04/12/23 - Amended Assembly (committee substitute) — source
5. 05/22/23 - Amended Assembly (committee substitute) — source
6. 07/03/23 - Amended Senate (committee substitute) — source
7. 09/08/23 - Amended Senate (committee substitute) — source
8. 10/13/23 - Chaptered (committee substitute) — source
9. AB659 (committee substitute) — source
10. 09/18/23 - Enrolled (enrolled) — source

Votes

• Do pass, but first be re-referred to the Committee on [Appropriations] — 5–2 (pass) · upper
• 3rd Reading AB659 Aguiar-Curry et al. By Wiener — 32–6 (pass) · upper
• Do pass and be re-referred to the Committee on [Appropriations] — 10–4 (pass) · lower
• AB 659 Aguiar-Curry Assembly Third Reading — 59–14 (pass) · lower
• AB 659 Aguiar-Curry Concurrence in Senate Amendments — 60–13 (pass) · lower
• Do pass as amended, but first amend, and re-refer to the Committee on [Education] — 10–1 (pass) · upper
• Placed on suspense file — 7–0 (pass) · upper
• Do pass. — 11–4 (pass) · lower
• Do pass — 5–2 (pass) · upper

Sponsors

• Aguiar-Curry — primary (person)
• Blanca Rubio — coauthor (person)
• Friedman — coauthor (person)
• Kalra — coauthor (person)
• Ortega — coauthor (person)
• Papan — coauthor (person)
• Wendy Carrillo — coauthor (person)
• Wiener — coauthor (person)

Timeline

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

• 2023-02-09 Read first time. To print. reading-1
• 2023-02-10 From printer. May be heard in committee March 12.
• 2023-02-17 Referred to Com. on HEALTH. referral-committee
• 2023-02-17 From committee chair, with author's amendments: Amend, and re-refer to Com. on HEALTH. Read second time and amended. amendment-introduction, amendment-passage, reading-1, reading-2
• 2023-02-21 Re-referred to Com. on HEALTH. referral-committee
• 2023-03-21 From committee chair, with author's amendments: Amend, and re-refer to Com. on HEALTH. Read second time and amended. amendment-introduction, amendment-passage, reading-1, reading-2
• 2023-03-22 Re-referred to Com. on HEALTH. referral-committee
• 2023-03-23 In committee: Hearing postponed by committee.
• 2023-04-12 From committee chair, with author's amendments: Amend, and re-refer to Com. on HEALTH. Read second time and amended. amendment-introduction, amendment-passage, reading-1, reading-2
• 2023-04-17 Re-referred to Com. on HEALTH. referral-committee
• 2023-04-19 From committee: Do pass and re-refer to Com. on APPR. (Ayes 10. Noes 4.) (April 18). Re-referred to Com. on APPR. committee-passage, committee-passage-favorable, referral-committee
• 2023-05-03 In committee: Hearing postponed by committee.
• 2023-05-10 In committee: Hearing postponed by committee.
• 2023-05-17 From committee: Do pass. (Ayes 11. Noes 4.) (May 17). committee-passage, committee-passage-favorable
• 2023-05-18 Read second time. Ordered to third reading. reading-1, reading-2
• 2023-05-22 Read third time and amended. Ordered to third reading. (Page 1683.) amendment-passage, reading-1, reading-3
• 2023-05-31 Read third time. Passed. Ordered to the Senate. (Ayes 59. Noes 14. Page 1958.) passage, reading-1, reading-3
• 2023-06-01 In Senate. Read first time. To Com. on RLS. for assignment. reading-1
• 2023-06-14 Referred to Coms. on HEALTH and ED. referral-committee
• 2023-06-29 From committee: Amend, and do pass as amended and re-refer to Com. on ED. (Ayes 10. Noes 1.) (June 28). amendment-introduction, amendment-passage, committee-passage, referral-committee
• 2023-07-03 Read second time and amended. Re-referred to Com. on ED. amendment-passage, reading-1, reading-2, referral-committee
• 2023-07-13 From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (July 12). Re-referred to Com. on APPR. committee-passage, committee-passage-favorable, referral-committee
• 2023-08-21 In committee: Referred to APPR suspense file. referral-committee
• 2023-09-01 From committee: Do pass. (Ayes 5. Noes 2.) (September 1). committee-passage, committee-passage-favorable
• 2023-09-05 Read second time. Ordered to third reading. reading-1, reading-2
• 2023-09-08 Read third time and amended. Ordered to second reading. amendment-passage, reading-1, reading-3
• 2023-09-11 Read second time. Ordered to third reading. reading-1, reading-2
• 2023-09-12 Read third time. Passed. Ordered to the Assembly. (Ayes 32. Noes 6. Page 2644.). passage, reading-1, reading-3
• 2023-09-12 In Assembly. Concurrence in Senate amendments pending.
• 2023-09-13 Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 60. Noes 13. Page 3387.). amendment-passage, committee-passage-favorable
• 2023-09-20 Enrolled and presented to the Governor at 4 p.m.
• 2023-10-13 Approved by the Governor. executive-signature
• 2023-10-13 Chaptered by Secretary of State - Chapter 809, Statutes of 2023. became-law

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/bea74a03-3778-46bf-8401-2a5909fc0f19. Confidence: reported (aggregated from official California legislature records).