---
type: "Bill"
title: "Sales and use taxes: exemptions: medical supplies purchased by surgical clinics."
description: "Sales and use taxes: exemptions: medical supplies purchased by surgical clinics."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20012002"
identifier: "AB 646"
citation: "California AB 646 (20012002)"
classification: ["bill"]
subjects: ["Sales and use taxes: exemptions: medical supplies purchased by surgical clinics."]
status: "enacted"
primary_sponsors: ["Horton"]
version_count: 5
action_count: 20
vote_count: 8
first_action: "2001-02-22"
last_action: "2001-10-11"
source: "openstates"
source_identifier: "ocd-bill/9138b297-8147-451a-b711-1333362a0697"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB646"
source_hash: "39dfbea86d303536c542533f05748a826f9596fb90f6a2dbe15b51f782c0fcee"
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 646 (20012002) — Sales and use taxes: exemptions: medical supplies purchased by surgical clinics.

## Version chain

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

1. **02/22/01 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB646&version=20010AB64699INT)
2. **09/10/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB646&version=20010AB64698AMD)
3. **10/11/01 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB646&version=20010AB64696CHP)
4. **AB646** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB646)
5. **09/14/01 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB646&version=20010AB64697ENR)

## Votes

- Do pass, but re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Assembly 3rd Reading AB646 Horton By Poochigian — **pass** (pass) · upper
- Do pass and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Do pass. — **pass** (pass) · lower
- AB 646 Horton Special Consent Calendar 2nd Day Regular Session — **pass** (pass) · lower
- AB 646 Horton Assembly Third Reading — **pass** (pass) · lower
- Do pass as amended. — **pass** (pass) · upper
- Placed on Appropriations Suspense file. — **pass** (pass) · upper

## Sponsors

- Horton — primary (person)

## Timeline

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

- **2001-10-11** Chaptered by Secretary of State - Chapter 706, Statutes of 2001.
- **2001-10-10** Approved by the Governor. `executive-signature`
- **2001-10-01** Enrolled and to the Governor at 2:30 p.m.
- **2001-09-14** Senate amendments concurred in. To enrollment. (Ayes 79. Noes 0. Page 3985.) `committee-passage-favorable, amendment-passage`
- **2001-09-12** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 14 pursuant to Assembly Rule 77. Ordered to Special Consent Calendar.
- **2001-09-12** Read third time, passed, and to Assembly. (Ayes 40. Noes 0. Page 2810.) `passage, reading-1, reading-3`
- **2001-09-10** From committee: Amend, and do pass as amended. (Ayes 11. Noes 0.). Read second time and amended. Ordered to third reading. `reading-2, reading-1, committee-passage, amendment-introduction, amendment-passage`
- **2001-09-06** In committee: Held under submission.
- **2001-07-16** In committee: Placed on Appropriations suspense file.
- **2001-06-28** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 5. Noes 0.). `committee-passage-favorable, referral-committee, committee-passage`
- **2001-06-12** Referred to Standing Committee on Revenue and Taxation. `referral-committee`
- **2001-06-05** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2001-06-04** Read third time, passed, and to Senate. (Ayes 76. Noes 0. Page 2036.) `passage, reading-1, reading-3`
- **2001-05-31** From committee: Do pass. (Ayes 21. Noes 0.) (May 31). Read second time. To third reading. `reading-2, committee-passage-favorable, reading-1, committee-passage`
- **2001-05-29** Joint Rule 62(a), file notice waived. (Page 1856.)
- **2001-05-02** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **2001-04-17** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 8. Noes 0.) (April 16). `committee-passage-favorable, referral-committee, committee-passage`
- **2001-03-08** Referred to Standing Committee on Revenue and Taxation. `referral-committee`
- **2001-02-23** From printer. May be heard in committee March 25.
- **2001-02-22** Read first time. To print. `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9138b297-8147-451a-b711-1333362a0697`. Confidence: reported (aggregated from official California legislature records).