5a13be122b
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
97 lines
8.0 KiB
Markdown
97 lines
8.0 KiB
Markdown
---
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type: "Bill"
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title: "Workers' compensation: utilization review."
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description: "Existing law establishes a workers' compensation system, administered by the Administrative Director of the Division of Workers' Compensation, to compensate an employee for injuries sustained in the course of his or her employment. Existing law requires every employer, for purposes of workers' compensation, to establish a utilization review process to prospectively, retrospectively, or concurrently review and approve, modify, delay, or deny, based in whole or in part on medical necessity to cure and relieve, treatment recommendations by physicians prior to, retrospectively, or concurrent with the provision of medical treatment services, as provided. Existing law requires prospective or concurrent decisions to be made in a timely fashion that is appropriate for the nature of the employee's condition. Existing law also requires that decisions to approve, modify, delay, or deny requests by physicians for authorization prior to, or concurrent with, the provision of medical treatment services to employees be communicated to the requesting physician within 24 hours of the decision."
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jurisdiction: "us/states/ca"
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legislature: "California Legislature"
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session: "20152016"
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identifier: "AB 2503"
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citation: "California AB 2503 (20152016)"
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classification: ["bill"]
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subjects: ["Workers' compensation: utilization review."]
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status: "enacted"
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primary_sponsors: ["Obernolte"]
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version_count: 8
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action_count: 29
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vote_count: 5
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first_action: "2016-02-19"
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last_action: "2016-09-30"
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source: "openstates"
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source_identifier: "ocd-bill/cbe82221-e700-4b2c-b1e6-e9f41fdaf853"
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source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160AB2503"
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source_hash: "cd8af311f3fd11d37b853f6961aebe0a9ffad8f0325555ab4999a9b9f48d9e8a"
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vintage: "2026-07-01"
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source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
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retrieved_at: "2026-07-06"
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confidence: "reported"
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tags: ["legislation", "bill", "us-ca"]
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---
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# California AB 2503 (20152016) — Workers' compensation: utilization review.
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Existing law establishes a workers' compensation system, administered by the Administrative Director of the Division of Workers' Compensation, to compensate an employee for injuries sustained in the course of his or her employment. Existing law requires every employer, for purposes of workers' compensation, to establish a utilization review process to prospectively, retrospectively, or concurrently review and approve, modify, delay, or deny, based in whole or in part on medical necessity to cure and relieve, treatment recommendations by physicians prior to, retrospectively, or concurrent with the provision of medical treatment services, as provided. Existing law requires prospective or concurrent decisions to be made in a timely fashion that is appropriate for the nature of the employee's condition. Existing law also requires that decisions to approve, modify, delay, or deny requests by physicians for authorization prior to, or concurrent with, the provision of medical treatment services to employees be communicated to the requesting physician within 24 hours of the decision.
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## Version chain
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The bill's text revisions, in order — the diff chain from filing to enrollment.
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1. **02/19/16 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250399INT)
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2. **03/29/16 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250398AMD)
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3. **04/19/16 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250397AMD)
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4. **08/19/16 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250396AMD)
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5. **08/29/16 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250395AMD)
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6. **09/30/16 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250393CHP)
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7. **AB2503** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160AB2503)
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8. **09/02/16 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160AB2503&version=20150AB250394ENR)
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## Votes
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- Do pass. To Consent Calendar. — **13–0** (pass) · lower
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- Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar — **4–0** (pass) · upper
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- AB 2503 OBERNOLTE Consent Calendar Second Day — **78–0** (pass) · lower
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- AB 2503 OBERNOLTE Concurrence in Senate Amendments — **79–0** (pass) · lower
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- 3rd Reading AB2503 Obernolte By Mendoza — **39–0** (pass) · upper
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## Sponsors
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- Obernolte — primary (person)
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## Timeline
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The legislative action history — every referral, reading, and vote.
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- **2016-02-19** Introduced. To print. `introduction`
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- **2016-02-21** From printer. May be heard in committee March 22.
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- **2016-02-22** Read first time. `reading-1`
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- **2016-03-08** Referred to Com. on INS. `referral-committee`
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- **2016-03-29** From committee chair, with author's amendments: Amend, and re-refer to Com. on INS. Read second time and amended. `reading-2, amendment-introduction, amendment-passage, reading-1`
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- **2016-03-30** Re-referred to Com. on INS. `referral-committee`
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- **2016-04-19** From committee chair, with author's amendments: Amend, and re-refer to Com. on INS. Read second time and amended. `reading-2, amendment-introduction, amendment-passage, reading-1`
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- **2016-04-20** Re-referred to Com. on INS. `referral-committee`
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- **2016-05-04** From committee: Do pass. To Consent Calendar. (Ayes 13. Noes 0.) (May 4). `committee-passage-favorable, committee-passage`
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- **2016-05-05** Read second time. Ordered to Consent Calendar. `reading-2, reading-1`
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- **2016-05-12** Read third time. Passed. Ordered to the Senate. (Ayes 78. Noes 0. Page 4785.) `reading-3, passage, reading-1`
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- **2016-05-12** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
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- **2016-05-19** Referred to Com. on L. & I.R. `referral-committee`
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- **2016-06-08** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 4. Noes 0.) (June 8). Re-referred to Com. on APPR. `referral-committee, committee-passage-favorable, committee-passage`
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- **2016-06-09** Withdrawn from committee.
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- **2016-06-09** Ordered to second reading.
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- **2016-06-13** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2016-08-19** Read third time and amended. Ordered to second reading. `reading-3, amendment-passage, reading-1`
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- **2016-08-22** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2016-08-29** Joint Rule 61(b)(16) suspended. (Page 5483.)
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- **2016-08-29** Read third time and amended. Ordered to second reading. `reading-3, amendment-passage, reading-1`
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- **2016-08-30** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2016-08-31** Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0. Page 5568.). `reading-3, passage, reading-1`
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- **2016-08-31** In Assembly. Concurrence in Senate amendments pending.
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- **2016-08-31** Assembly Rule 63 suspended. (Page 6576.)
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- **2016-08-31** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 79. Noes 0. Page 6577.). `committee-passage-favorable, amendment-passage`
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- **2016-09-12** Enrolled and presented to the Governor at 11:30 a.m.
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- **2016-09-30** Approved by the Governor. `executive-signature`
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- **2016-09-30** Chaptered by Secretary of State - Chapter 885, Statutes of 2016.
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## Source
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OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/cbe82221-e700-4b2c-b1e6-e9f41fdaf853`. Confidence: reported (aggregated from official California legislature records).
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