---
type: "Bill"
title: "Air districts: adverse effects of air pollution: intellectual property."
description: "Existing law authorizes local and regional districts to have the primary responsibility for control of air pollution from all sources, other than emissions from motor vehicles."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20112012"
identifier: "SB 170"
citation: "California SB 170 (20112012)"
classification: ["bill"]
subjects: ["Air districts: adverse effects of air pollution: intellectual property."]
status: "enacted"
primary_sponsors: ["Pavley"]
version_count: 9
action_count: 28
vote_count: 7
first_action: "2011-02-03"
last_action: "2011-10-08"
source: "openstates"
source_identifier: "ocd-bill/2f81b67b-d08f-4bc2-a2e8-add61b6b5814"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB170"
source_hash: "02857009e1070f647e42bf2c9b27109e3348426221854978c9602b5047f6ae03"
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 SB 170 (20112012) — Air districts: adverse effects of air pollution: intellectual property.

Existing law authorizes local and regional districts to have the primary responsibility for control of air pollution from all sources, other than emissions from motor vehicles.

## Version chain

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

1. **02/03/11 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17099INT)
2. **03/16/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17098AMD)
3. **04/25/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17097AMD)
4. **05/10/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17096AMD)
5. **06/23/11 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17095AMD)
6. **07/12/11 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17094AMD)
7. **10/08/11 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17092CHP)
8. **SB170** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB170)
9. **09/01/11 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB170&version=20110SB17093ENR)

## Votes

- SB 170 Pavley Senate Third Reading By GATTO — **48–27** (pass) · lower
- Do pass. — **12–5** (pass) · lower
- Unfinished Business SB170 Pavley Concurrence — **25–13** (pass) · upper
- Do pass as amended and be re-referred to the Committee on Appropriations. — **5–2** (pass) · lower
- 3rd Reading — **25–14** (pass) · upper
- Do pass and be re-referred to the Committee on Natural Resources. — **6–3** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **5–1** (pass) · upper

## Sponsors

- Pavley — primary (person)

## Timeline

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

- **2011-02-03** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2011-02-07** From printer. May be acted upon on or after March 6.
- **2011-02-17** Referred to Com. on E.Q. `referral-committee`
- **2011-03-16** From committee with author's amendments. Read second time and amended. Re-referred to Com. on E.Q. `reading-2, reading-1, committee-passage, amendment-passage, referral-committee`
- **2011-03-22** Set for hearing April 4.
- **2011-03-31** Hearing postponed by committee.
- **2011-04-14** Set for hearing May 2.
- **2011-04-25** From committee with author's amendments. Read second time and amended. Re-referred to Com. on E.Q. `reading-2, reading-1, committee-passage, amendment-passage, referral-committee`
- **2011-05-09** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 1. Page 854.) (May 2). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-05-10** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-05-13** Set for hearing May 23.
- **2011-05-23** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2011-05-24** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-05-31** Read third time. Passed. (Ayes 25. Noes 14. Page 1183.) Ordered to the Assembly. `reading-3, reading-1, passage`
- **2011-06-01** In Assembly. Read first time. Held at Desk. `reading-1`
- **2011-06-09** Referred to Coms. on L. GOV. and NAT. RES. `referral-committee`
- **2011-06-23** From committee: Do pass and re-refer to Com. on NAT. RES. (Ayes 6. Noes 3.) (June 22). Re-referred to Com. on NAT. RES. `referral-committee, committee-passage, committee-passage-favorable`
- **2011-06-23** From committee with author's amendments. Read second time and amended. Re-referred to Com. on NAT. RES. `reading-2, reading-1, committee-passage, amendment-passage, referral-committee`
- **2011-07-11** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (July 6). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-07-12** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-08-18** From committee: Do pass. (Ayes 12. Noes 5.) (August 17). `committee-passage, committee-passage-favorable`
- **2011-08-22** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-08-25** Read third time. Passed. (Ayes 48. Noes 27. Page 2582.) Ordered to the Senate. `reading-3, reading-1, passage`
- **2011-08-25** In Senate. Concurrence in Assembly amendments pending.
- **2011-08-30** Assembly amendments concurred in. (Ayes 25. Noes 13. Page 2148.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2011-09-06** Enrolled and presented to the Governor at 4:30 p.m.
- **2011-10-08** Approved by the Governor. `executive-signature`
- **2011-10-08** Chaptered by Secretary of State. Chapter 586, Statutes of 2011.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/2f81b67b-d08f-4bc2-a2e8-add61b6b5814`. Confidence: reported (aggregated from official California legislature records).