---
type: "Bill"
title: "AN ACT CONCERNING STERILE CULTIVARS, APPLICATION REQUIREMENTS FOR THE USE OF CERTAIN MATERIALS AS FILL AND THE REVISION OF CERTAIN HOUSING-RELATED STATUTES."
description: "AN ACT CONCERNING STERILE CULTIVARS, APPLICATION REQUIREMENTS FOR THE USE OF CERTAIN MATERIALS AS FILL AND THE REVISION OF CERTAIN HOUSING-RELATED STATUTES."
jurisdiction: "us/states/ct"
legislature: "Connecticut General Assembly"
session: "2026"
identifier: "HB 5521"
citation: "Connecticut HB 5521 (2026)"
classification: ["bill"]
subjects: ["Electric generating facilities", "Energy and Environmental Protection", "Department of", "Fuel cell technology", "Invasive species", "Plants", "Solar energy"]
status: "enacted"
primary_sponsors: ["Joseph P. Gresko", "Kenneth Gucker", "Steve Weir", "Tami Zawistowski"]
version_count: 4
action_count: 29
vote_count: 3
first_action: "2026-03-06"
last_action: "2026-06-04"
source: "openstates"
source_identifier: "ocd-bill/833e93b2-6934-45e0-8c1e-3c80c10ab0a2"
source_url: "ftp://ftp.cga.ct.gov/pub/data/bill_info.csv"
source_hash: "167526c73c4bfbdb2c5bcb1438b0c3b7a54bacc533cdbbef7dc33742a06b8912"
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 5521 (2026) — AN ACT CONCERNING STERILE CULTIVARS, APPLICATION REQUIREMENTS FOR THE USE OF CERTAIN MATERIALS AS FILL AND THE REVISION OF CERTAIN HOUSING-RELATED STATUTES.

## 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/2026/TOB/H/PDF/2026HB-05521-R01-HB.PDF)
2. **File No. 435** (committee substitute) — [source](https://www.cga.ct.gov/2026/FC/PDF/2026HB-05521-R000435-FC.PDF)
3. **Public Act No. 26-129** (committee substitute) — [source](https://www.cga.ct.gov/2026/ACT/PA/PDF/2026PA-00129-R00HB-05521-PA.PDF)
4. **Raised Bill** (committee substitute) — [source](https://www.cga.ct.gov/2026/TOB/H/PDF/2026HB-05521-R00-HB.PDF)

## Votes

- House Roll Call Vote — **131–19** (pass) · lower
- House Roll Call Vote — **121–27** (pass) · lower
- Senate Roll Call Vote — **36–0** (pass) · upper

## Sponsors

- Joseph P. Gresko — primary (person)
- Kenneth Gucker — primary (person)
- Steve Weir — primary (person)
- Tami Zawistowski — primary (person)

## Timeline

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

- **2026-03-06** REF. TO JOINT COMM. ON Environment `referral-committee`
- **2026-03-09** PUBLIC HEARING 0313
- **2026-03-18** Joint Favorable Substitute `committee-passage-favorable`
- **2026-03-19** FILED WITH LCO `filing`
- **2026-03-30** REFERRED TO Office of Legislative Research AND Office of Fiscal Analysis 04/07/26 `referral`
- **2026-04-07** RPTD. OUT OF LCO
- **2026-04-07** FAV. RPT., TABLED FOR HOUSE CALENDAR `reading-2`
- **2026-04-07** HOUSE CALENDAR NUMBER 330
- **2026-04-07** FILE NO. 435
- **2026-05-06** HOUSE ADOPTED HOUSE AMEND. SCH. A `amendment-passage`
- **2026-05-06** HOUSE PASSED, HOUSE AMEND. SCH. A `passage`
- **2026-05-06** TRANSMITTED PURSUANT TO JOINT RULE 17
- **2026-05-06** FAV. RPT., TAB. FOR CAL., SEN. `reading-2`
- **2026-05-06** SENATE CALENDAR NUMBER 555
- **2026-05-06** RULES SUSPENDED
- **2026-05-06** SEN. ADOPTED HO. AMEND. SCH. A `amendment-passage`
- **2026-05-06** SEN. ADOPTED SEN. AMEND. SCH. A `amendment-passage`
- **2026-05-06** SEN. PASSED, HO. AMEND. SCH. A `passage`
- **2026-05-06** SEN. PASSED, SEN. AMEND. SCH. A `passage`
- **2026-05-06** TRANSMITTED PURSUANT TO JOINT RULE 17
- **2026-05-06** POTENTIAL DISAGREEING ACTION, TABLED CAL. HO.
- **2026-05-06** HOUSE ADOPTED SEN. AMEND. SCH. A `amendment-passage`
- **2026-05-06** HOUSE PASSED, HOUSE AMEND. SCH. A `passage`
- **2026-05-06** HOUSE PASSED, SEN. AMEND. SCH. A `passage`
- **2026-05-06** IN CONCURRENCE
- **2026-05-20** PUBLIC ACT 26-129
- **2026-05-28** TRANSMITTED TO SECRETARY OF THE STATE
- **2026-05-28** TRANSMITTED BY SECRETARY OF THE STATE TO GOVERNOR `executive-receipt`
- **2026-06-04** 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/833e93b2-6934-45e0-8c1e-3c80c10ab0a2`. Confidence: reported (aggregated from official Connecticut legislature records).