republic-os/legislation/us/states/ca/20212022/ab-172.md

---
type: "Bill"
title: "Human services."
description: "(1) Existing law establishes the Department of Child Support Services, which administers all federal and state laws and regulations relating to child support enforcement obligations. Existing law requires each county to maintain a local child support agency that is responsible for establishing, modifying, and enforcing child support obligations, including medical support, enforcing spousal support orders, and determining paternity, as specified. Existing law, commencing January 1, 2023, requires a local child support agency to cease enforcement of child support arrearages and otherwise past due amounts owed to the state that the Department of Child Support Services or the local child support agency has determined to be uncollectible, as specified."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "AB 172"
citation: "California AB 172 (20212022)"
classification: ["bill", "appropriation"]
subjects: ["Human services."]
status: "enacted"
primary_sponsors: ["Committee on Budget"]
version_count: 6
action_count: 26
vote_count: 4
first_action: "2021-01-08"
last_action: "2021-10-08"
source: "openstates"
source_identifier: "ocd-bill/318e3623-f5c5-46e7-ac96-7c033cc68d46"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB172"
source_hash: "7a184d72aeff4a841a506ae2e0691da13a2608e90575334fcad4e1ae0f5e0982"
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 172 (20212022) — Human services.

(1) Existing law establishes the Department of Child Support Services, which administers all federal and state laws and regulations relating to child support enforcement obligations. Existing law requires each county to maintain a local child support agency that is responsible for establishing, modifying, and enforcing child support obligations, including medical support, enforcing spousal support orders, and determining paternity, as specified. Existing law, commencing January 1, 2023, requires a local child support agency to cease enforcement of child support arrearages and otherwise past due amounts owed to the state that the Department of Child Support Services or the local child support agency has determined to be uncollectible, as specified.

## Version chain

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

1. **01/08/21 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB172&version=20210AB17299INT)
2. **02/17/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB172&version=20210AB17298AMD)
3. **09/05/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB172&version=20210AB17297AMD)
4. **10/08/21 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB172&version=20210AB17295CHP)
5. **AB172** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB172)
6. **09/13/21 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB172&version=20210AB17296ENR)

## Votes

- Do pass — **14–1** (pass) · upper
- AB 172 BUDGET Assembly Third Reading By TING — **56–18** (pass) · lower
- AB 172 BUDGET Concurrence in Senate Amendments By TING — **79–0** (pass) · lower
- 3rd Reading AB172 BUDGET (Ting) By Skinner — **32–1** (pass) · upper

## Sponsors

- Committee on Budget — primary (person)

## Timeline

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

- **2021-01-08** Introduced. To print. `introduction`
- **2021-01-09** From printer. May be heard in committee February 9.
- **2021-01-11** Read first time. `reading-1`
- **2021-01-28** Referred to Com. on BUDGET. `referral-committee`
- **2021-02-17** From committee chair, with author's amendments: Amend, and re-refer to Com. on BUDGET. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2021-02-18** Re-referred to Com. on BUDGET. `referral-committee`
- **2021-02-22** Assembly Rule 96 suspended. (Ayes 53. Noes 17. Page 432.)
- **2021-02-22** Withdrawn from committee.
- **2021-02-22** Ordered to second reading.
- **2021-02-23** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-02-25** Read third time. Passed. Ordered to the Senate. (Ayes 56. Noes 18. Page 497.) `passage, reading-1, reading-3`
- **2021-02-25** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2021-03-11** Referred to Com. on B. & F.R. `referral-committee`
- **2021-09-01** Joint Rule 61 suspended. (Ayes 30. Noes 9. Page 2302.)
- **2021-09-01** Senate rules suspended.
- **2021-09-01** (Ayes 30. Noes 9. Page 2303.)
- **2021-09-05** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on B. & F.R. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
- **2021-09-07** From committee: Do pass. (Ayes 14. Noes 1.) (September 7). `committee-passage, committee-passage-favorable`
- **2021-09-08** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-09-09** Read third time. Passed. Ordered to the Assembly. (Ayes 32. Noes 1. Page 2577.). `passage, reading-1, reading-3`
- **2021-09-09** In Assembly. Concurrence in Senate amendments pending.
- **2021-09-09** Assembly Rule 63 suspended. (Ayes 55. Noes 19. Page 3049.)
- **2021-09-09** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 79. Noes 0. Page 3052.). `amendment-passage, committee-passage-favorable`
- **2021-09-15** Enrolled and presented to the Governor at 5 p.m.
- **2021-10-08** Approved by the Governor. `executive-signature`
- **2021-10-08** Chaptered by Secretary of State - Chapter 696, Statutes of 2021. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/318e3623-f5c5-46e7-ac96-7c033cc68d46`. Confidence: reported (aggregated from official California legislature records).