republic-os/legislation/us/states/ca/20132014/ab-635.md

---
type: "Bill"
title: "Drug overdose treatment: liability."
description: "Existing law authorizes a physician and surgeon to prescribe, dispense, or administer prescription drugs, including prescription-controlled substances, to an addict under his or her treatment, as specified. Existing law prohibits, except in the regular practice of his or her profession, any person from knowingly prescribing, administering, dispensing, or furnishing a controlled substance to or for any person who is not under his or her treatment for a pathology or condition other than an addiction to a controlled substance, except as specified."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20132014"
identifier: "AB 635"
citation: "California AB 635 (20132014)"
classification: ["bill"]
subjects: ["Drug overdose treatment: liability."]
status: "enacted"
primary_sponsors: ["Ammiano"]
version_count: 7
action_count: 19
vote_count: 5
first_action: "2013-02-20"
last_action: "2013-10-10"
source: "openstates"
source_identifier: "ocd-bill/fa19ac59-d7f8-4f7b-beb3-bb13f7c03afc"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201320140AB635"
source_hash: "cf5f45131030b0886b36b635365177668989a9ae408153be19c8ec4bdde2596d"
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 635 (20132014) — Drug overdose treatment: liability.

Existing law authorizes a physician and surgeon to prescribe, dispense, or administer prescription drugs, including prescription-controlled substances, to an addict under his or her treatment, as specified. Existing law prohibits, except in the regular practice of his or her profession, any person from knowingly prescribing, administering, dispensing, or furnishing a controlled substance to or for any person who is not under his or her treatment for a pathology or condition other than an addiction to a controlled substance, except as specified.

## Version chain

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

1. **02/20/13 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63599INT)
2. **04/11/13 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63598AMD)
3. **06/24/13 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63597AMD)
4. **08/22/13 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63596AMD)
5. **10/10/13 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63594CHP)
6. **AB635** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201320140AB635)
7. **09/12/13 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB635&version=20130AB63595ENR)

## Votes

- Do pass. — **8–0** (pass) · lower
- AB 635 AMMIANO Assembly Third Reading — **77–0** (pass) · lower
- AB 635 AMMIANO Concurrence in Senate Amendments — **77–0** (pass) · lower
- Do pass as amended. — **6–0** (pass) · upper
- 3rd Reading AB635 Ammiano By DeSaulnier — **36–0** (pass) · upper

## Sponsors

- Ammiano — primary (person)
- DeSaulnier — principal coauthor (person)

## Timeline

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

- **2013-02-20** Read first time. To print. `reading-1`
- **2013-02-21** From printer. May be heard in committee March 23.
- **2013-03-04** Referred to Com. on JUD. `referral-committee`
- **2013-04-02** From committee: Do pass. (Ayes 9. Noes 0.) (April 2). `committee-passage-favorable, committee-passage`
- **2013-04-03** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2013-04-11** Read third time and amended. Ordered to third reading. (Page 877.) `reading-3, reading-1, amendment-passage`
- **2013-04-15** Read third time. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 915.) `reading-3, reading-1, passage`
- **2013-04-15** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2013-04-25** Referred to Com. on JUD. `referral-committee`
- **2013-06-20** From committee: Do pass as amended. (Ayes 6. Noes 0.) (June 18). `committee-passage-favorable, committee-passage, amendment-passage`
- **2013-06-24** Read second time and amended. Ordered to third reading. `reading-2, reading-1, amendment-passage`
- **2013-08-22** Read third time and amended. Ordered to second reading. `reading-3, reading-1, amendment-passage`
- **2013-08-26** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2013-09-06** Read third time. Passed. Ordered to the Assembly. (Ayes 36. Noes 0. Page 2183.). `reading-3, reading-1, passage`
- **2013-09-06** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 8 pursuant to Assembly Rule 77.
- **2013-09-09** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 77. Noes 0. Page 3035.). `committee-passage-favorable, amendment-passage`
- **2013-09-25** Enrolled and presented to the Governor at 4:30 p.m.
- **2013-10-10** Approved by the Governor. `executive-signature`
- **2013-10-10** Chaptered by Secretary of State - Chapter 707, Statutes of 2013.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/fa19ac59-d7f8-4f7b-beb3-bb13f7c03afc`. Confidence: reported (aggregated from official California legislature records).