---
type: "Bill"
title: "unfair claims practices; cost sharing"
description: "unfair claims practices; cost sharing"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "54th-1st-regular"
identifier: "HB 2166"
citation: "Arizona HB 2166 (54th-1st-regular)"
classification: ["bill"]
subjects: ["HEALTH CARE INSURANCE", "INSURANCE - TITLE 20", "PHARMACY BENEFITS", "UNFAIR CLAIM SETTLEMENT PRACTICES"]
status: "enacted"
primary_sponsors: ["Nancy Barto"]
version_count: 8
action_count: 17
vote_count: 6
first_action: "2019-01-28"
last_action: "2019-04-11"
source: "openstates"
source_identifier: "ocd-bill/be3651e1-5856-40d6-9442-5b6b220fc8ab"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/71266?SessionId=121"
source_hash: "1764a54cc2d833600ce3201b8e44741fe25aa7a7d4a8339daa24adfe18495f40"
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-az"]
---

# Arizona HB 2166 (54th-1st-regular) — unfair claims practices; cost sharing

## Version chain

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

1. **Chaptered Version** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/laws/0075.htm)
2. **HOUSE - Floor Amend to HHS - Barto - passed** (committee substitute) — [source](https://apps.azleg.gov/BillStatus/GetDocumentPdf/468076)
3. **HOUSE - Health & Human Services - Strike Everything** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/adopted/H.2166HEALTH  HUMAN SERVICES.DOCX.htm)
4. **House Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/bills/HB2166H.htm)
5. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/bills/HB2166P.htm)
6. **SENATE - Finance** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/adopted/S.2166FIN.DOCX.htm)
7. **SENATE - Mesnard flr amend (ref FIN) adopted** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/adopted/S.2166FLOORMESNARD.docx.htm)
8. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/54leg/1R/bills/HB2166S.htm)

## Votes

- Passed — **58–0** (pass) · lower
- Passed — **29–0** (pass) · upper
- do pass amended — **0–0** (fail) · lower
- Passed — **0–0** (fail) · lower
- do pass amended — **0–0** (fail) · upper
- Passed — **57–0** (pass) · lower

## Sponsors

- Nancy Barto — primary (person)
- Regina E. Cobb — cosponsor (person)

## Timeline

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

- **2019-01-28** house first reading. `reading-1`
- **2019-02-21** dpa/se `amendment-passage`
- **2019-01-29** house second reading `reading-2`
- **2019-03-04** dpa `amendment-passage`
- **2019-03-04** passed `passage, reading-3`
- **2019-03-12** senate first reading `reading-1`
- **2019-03-05** transmit to senate
- **2019-03-20** dp `committee-passage`
- **2019-03-13** senate second reading `reading-2`
- **2019-03-27** dpa `amendment-passage`
- **2019-04-08** dpa `amendment-passage`
- **2019-04-08** transmit to house
- **2019-04-08** passed `passage, reading-3`
- **2019-04-09** passed `passage`
- **2019-04-09** transmit to governor `executive-receipt`
- **2019-04-09** passed `passage`
- **2019-04-11** signed by governor `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/be3651e1-5856-40d6-9442-5b6b220fc8ab`. Confidence: reported (aggregated from official Arizona legislature records).