---
type: "Bill"
title: "Cannabis: legal services."
description: "Existing law, the Control, Regulate and Tax Adult Use of Marijuana Act (AUMA) , an initiative measure enacted by the approval of Proposition 64 at the November 8, 2016, statewide general election, authorizes the consumption of nonmedical marijuana, also known as adult-use cannabis, by persons over 21 years of age and establishes a system for the licensure and regulation of certain commercial nonmedical marijuana activities. Existing law, the Medicinal and Adult-Use Cannabis Regulation and Safety Act, expands and modifies this system to also include the licensure and regulation of certain commercial medicinal cannabis activities."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20172018"
identifier: "AB 1159"
citation: "California AB 1159 (20172018)"
classification: ["bill"]
subjects: ["Cannabis: legal services."]
status: "enacted"
primary_sponsors: ["Chiu"]
version_count: 6
action_count: 20
vote_count: 5
first_action: "2017-02-17"
last_action: "2017-10-06"
source: "openstates"
source_identifier: "ocd-bill/ef439d9f-5fb0-430c-a10b-6d67186210b4"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB1159"
source_hash: "87cdfa03dfcefdd8d356fbec57f9dce48796693dc70e89cd55fd7408402198dc"
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 1159 (20172018) — Cannabis: legal services.

Existing law, the Control, Regulate and Tax Adult Use of Marijuana Act (AUMA) , an initiative measure enacted by the approval of Proposition 64 at the November 8, 2016, statewide general election, authorizes the consumption of nonmedical marijuana, also known as adult-use cannabis, by persons over 21 years of age and establishes a system for the licensure and regulation of certain commercial nonmedical marijuana activities. Existing law, the Medicinal and Adult-Use Cannabis Regulation and Safety Act, expands and modifies this system to also include the licensure and regulation of certain commercial medicinal cannabis activities.

## Version chain

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

1. **02/17/17 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB1159&version=20170AB115999INT)
2. **03/28/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB1159&version=20170AB115998AMD)
3. **07/19/17 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB1159&version=20170AB115997AMD)
4. **10/06/17 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB1159&version=20170AB115995CHP)
5. **AB1159** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB1159)
6. **09/07/17 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB1159&version=20170AB115996ENR)

## Votes

- Do pass. — **9–2** (pass) · lower
- AB 1159 CHIU Concurrence in Senate Amendments — **55–22** (pass) · lower
- AB 1159 CHIU Assembly Third Reading — **54–24** (pass) · lower
- 3rd Reading AB1159 Chiu By McGuire — **31–8** (pass) · upper
- Do pass — **6–1** (pass) · upper

## Sponsors

- Chiu — primary (person)

## Timeline

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

- **2017-02-17** Read first time. To print. `reading-1`
- **2017-02-19** From printer. May be heard in committee March 21.
- **2017-03-27** Referred to Com. on JUD. `referral-committee`
- **2017-03-28** From committee chair, with author's amendments: Amend, and re-refer to Com. on JUD. Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1`
- **2017-03-29** Re-referred to Com. on JUD. `referral-committee`
- **2017-05-09** From committee: Do pass. (Ayes 9. Noes 2.) (May 9). `committee-passage-favorable, committee-passage`
- **2017-05-10** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-05-15** Read third time. Passed. Ordered to the Senate. (Ayes 54. Noes 24. Page 1530.) `reading-3, passage, reading-1`
- **2017-05-15** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2017-05-24** Referred to Com. on JUD. `referral-committee`
- **2017-06-21** From committee: Do pass. (Ayes 6. Noes 1.) (June 20). `committee-passage-favorable, committee-passage`
- **2017-06-22** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-07-19** Read third time and amended. Ordered to second reading. `amendment-passage, reading-3, reading-1`
- **2017-07-20** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-08-31** Read third time. Passed. Ordered to the Assembly. (Ayes 31. Noes 8. Page 2336.). `reading-3, passage, reading-1`
- **2017-08-31** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 2 pursuant to Assembly Rule 77.
- **2017-09-05** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 55. Noes 22. Page 2929.). `committee-passage-favorable, amendment-passage`
- **2017-09-12** Enrolled and presented to the Governor at 2:30 p.m.
- **2017-10-06** Approved by the Governor. `executive-signature`
- **2017-10-06** Chaptered by Secretary of State - Chapter 530, Statutes of 2017.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ef439d9f-5fb0-430c-a10b-6d67186210b4`. Confidence: reported (aggregated from official California legislature records).