---
type: "Bill"
title: "AN ACT CONCERNING ANIMAL WELFARE."
description: "AN ACT CONCERNING ANIMAL WELFARE."
jurisdiction: "us/states/ct"
legislature: "Connecticut General Assembly"
session: "2021"
identifier: "HB 6504"
citation: "Connecticut HB 6504 (2021)"
classification: ["bill"]
subjects: ["Animal control officers", "Animal population control program", "Animal shelters", "Animals", "Euthanasia", "Fees", "Fines (Penalties)", "Guide dogs and assistance dogs", "Pounds", "Rabies", "Veterinarians"]
status: "enacted"
primary_sponsors: ["Anwar, Saud", "Hughes, Anne M.", "Kennedy, Kathy", "Klarides-ditria, Nicole", "Labriola, David K.", "Michel, David", "Sampson, Rob", "Santiago, Hilda E.", "Scott, Tony J", "Stallworth, Charlie L.", "Young, Philip L."]
version_count: 5
action_count: 21
vote_count: 0
first_action: "2021-02-24"
last_action: "2021-06-28"
source: "openstates"
source_identifier: "ocd-bill/49c027f1-c1c0-43c5-9622-fb46bc2e6e77"
source_url: "ftp://ftp.cga.ct.gov/pub/data/bill_info.csv"
source_hash: "6cef07fb5e424c4d850715fb8d1915f21f859030c44e50d58992de5684b9dce2"
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-ct"]
---

# Connecticut HB 6504 (2021) — AN ACT CONCERNING ANIMAL WELFARE.

## Version chain

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

1. **ENV Joint Favorable Substitute** (committee substitute) — [source](https://www.cga.ct.gov/2021/TOB/H/PDF/2021HB-06504-R01-HB.PDF)
2. **File No. 434** (committee substitute) — [source](https://www.cga.ct.gov/2021/FC/PDF/2021HB-06504-R000434-FC.PDF)
3. **File No. 751** (committee substitute) — [source](https://www.cga.ct.gov/2021/FC/PDF/2021HB-06504-R000751-FC.PDF)
4. **Public Act No. 21-90** (committee substitute) — [source](https://www.cga.ct.gov/2021/ACT/PA/PDF/2021PA-00090-R00HB-06504-PA.PDF)
5. **Raised Bill** (committee substitute) — [source](https://www.cga.ct.gov/2021/TOB/H/PDF/2021HB-06504-R00-HB.PDF)

## Sponsors

- Anwar, Saud — primary (person)
- Hughes, Anne M. — primary (person)
- Kennedy, Kathy — primary (person)
- Klarides-ditria, Nicole — primary (person)
- Labriola, David K. — primary (person)
- Michel, David — primary (person)
- Sampson, Rob — primary (person)
- Santiago, Hilda E. — primary (person)
- Scott, Tony J — primary (person)
- Stallworth, Charlie L. — primary (person)
- Young, Philip L. — primary (person)

## Timeline

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

- **2021-02-24** REF. TO JOINT COMM. ON Environment `referral-committee`
- **2021-02-26** PUBLIC HEARING 0303
- **2021-03-29** Joint Favorable Substitute `committee-passage-favorable`
- **2021-03-29** FILED WITH LCO
- **2021-04-08** REFERRED TO Office of Legislative Research AND Office of Fiscal Analysis 04/13/21
- **2021-04-14** RPTD. OUT OF LCO
- **2021-04-14** FAV. RPT., TABLED FOR HOUSE CALENDAR
- **2021-04-14** HOUSE CALENDAR NUMBER 326
- **2021-04-14** FILE NO. 434
- **2021-05-25** HOUSE ADOPTED HOUSE AMEND. SCH. A
- **2021-05-25** HOUSE PASSED, HOUSE AMEND. SCH. A `passage`
- **2021-05-27** FAV. RPT., TAB. FOR CAL., SEN.
- **2021-05-27** SENATE CALENDAR NUMBER 511
- **2021-05-27** FILE NO. 751
- **2021-06-04** SEN. ADOPTED HO. AMEND. SCH. A
- **2021-06-04** SEN. PASSED, HO. AMEND. SCH. A `passage`
- **2021-06-04** IN CONCURRENCE
- **2021-06-16** PUBLIC ACT 21-90
- **2021-06-18** TRANSMITTED TO SECRETARY OF THE STATE
- **2021-06-18** TRANSMITTED BY SECRETARY OF THE STATE TO GOVERNOR
- **2021-06-28** 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/49c027f1-c1c0-43c5-9622-fb46bc2e6e77`. Confidence: reported (aggregated from official Connecticut legislature records).