HB 5146 Connecticut House · 2026 Regular Session

AN ACT CONCERNING A STUDY OF THE REMEDIATION AND DEVELOPMENT OF BROWNFIELDS IN THIS STATE.

HB 5146 requires Connecticut's Commissioner of Economic and Community Development to study challenges and opportunities related to cleaning up and redeveloping brownfields (underutilized properties with potential contamination). The commissioner must submit a report to the legislature's commerce committee by February 1, 2026, detailing findings on remediation and development issues. This bill does not create new regulations, allocate funding, or change current law - its sole purpose is to inform future policy decisions through a formal study.

Bill status signed all 5 stages cleared

Introduction

Feb 2026

Committee Review

Mar 2026

House Passage

Apr 2026

Senate Passage

May 2026

Signed into Law

May 2026

Introduced Feb 11, 2026 Signed May 19, 2026

Maddy AI version diff · 1 comparison

What changed between versions

Raised Bill → CE Joint Favorable Substitute · 4 edits

MODERATE

The bill was amended to broaden its scope from a single agency study to a collaborative effort involving an existing Brownfields Working Group. The study now specifically addresses issues arising from the state's new release-based cleanup program, and the deadline for submitting results was extended from February 2026 to January 2027.

Scope change

The bill's scope expanded from a study by the Commissioner of Economic and Community Development alone to a joint study by the Brownfields Working Group, the Commissioner of Economic and Community Development, and the Commissioner of Energy and Environmental Protection.

REQUIREMENT

The entity responsible for conducting the study changed from the Commissioner of Economic and Community Development alone to the Brownfields Working Group in consultation with two Commissioners.

The report must now be submitted to committees covering both commerce and the environment, whereas previously it was only for the commerce committee.

SCOPE

The study now explicitly includes issues caused by the implementation of the release-based cleanup program established under chapter 445b.

TIMELINE

The deadline for submitting the study report was extended from February 1, 2026, to January 1, 2027.

Floor votes · Senate May 4, 2026 · House Apr 9, 2026

How they voted

36–0

Passed

Total votes 36

May 4, 2026

D Democratic25

25 Yea

100% Yea

R Republican11

11 Yea

100% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

May 19, 2026

Signed into law

SIGNED BY GOVERNOR

lower

May 4, 2026

Upper · Passed

SENATE PASSED

upper

Apr 9, 2026

Lower · Passed

HOUSE PASSED

lower

Mar 5, 2026

Lower · Passed

Joint Favorable Substitute

lower

Feb 11, 2026

Committee

REF. TO JOINT COMM. ON Commerce

lower

13 primary · 0 co-sponsors