HB 350 Hawaii House · 2026 Regular Session

RELATING TO ENERGY.

Summary

Expands the types of water heater systems that may satisfy the relevant requirement for the issuance of a building permit for new single-family dwellings to include ENERGY STAR certified heat pump water heaters. Effective 7/1/3000. (HD2)

Issues: ✓ Energy ✓ Environment

Bill status passed both 4 of 5 stages cleared

Introduction

Jan 2025

Committee Review

Apr 2026

House Passage

Mar 2025

Senate Passage

Mar 2025

Governor

Introduced Jan 16, 2025 Last action Apr 7, 2026

Maddy AI version diff · 2 comparisons

What changed between versions

HB350_HD1 → HB350_HD2 · 4 edits

MODERATE

The bill was amended to update the legislative session number from the 33rd to the 34th and changed the document revision from HD1 to HD2. The definition of 'heat pump' was slightly refined to remove the specific mention of 'water heater' in the device description, while the report title was updated to explicitly include 'Heat Pump Water Heaters' for clarity.

Scope change

The bill's scope remains focused on water heater system requirements for new single-family dwellings, but the terminology in the definitions and report title was adjusted to better align with updated legislative session data.

DEFINITION

The definition of 'heat pump' was modified to define the device generally rather than specifically as a 'heat pump water heater' within the definition text.

TIMELINE

Internal document metadata dates were updated from February 2025 to March 2025, reflecting a revision in the legislative process.

SCOPE

The report title was modified to explicitly include 'Heat Pump Water Heaters' to clarify the subject matter of the legislation.

TECHNICAL

The legislative session identifier was changed from the 33rd to the 34th Legislature, and the document revision number was updated from HD1 to HD2.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Apr 2, 2026

Upper · Passed

The committee(s) on CPN will hold a public decision making on 04-07-26 9:25AM; Conference Room 229 & Videoconference.

upper

Mar 13, 2025

Upper · Passed

Report adopted; Passed Second Reading and referred to CPN.

upper

Mar 13, 2025

Committee

Reported from EIG/HOU (Stand. Com. Rep. No. 1078) with recommendation of passage on Second Reading and referral to CPN.

upper

Mar 11, 2025

Upper · Passed

The committee(s) on HOU recommend(s) that the measure be PASSED, UNAMENDED. The votes in HOU were as follows: 3 Aye(s): Senator(s) Chang, Hashimoto, Kanuha; Aye(s) with reservations: none ; 0 No(es): none; and 2 Excused: Senator(s) Aquino, Fevella.

upper

Mar 11, 2025

Upper · Passed

The committee(s) on EIG recommend(s) that the measure be PASSED, UNAMENDED. The votes in EIG were as follows: 3 Aye(s): Senator(s) Wakai, Chang, Richards; Aye(s) with reservations: none ; 0 No(es): none; and 2 Excused: Senator(s) DeCoite, Fevella.

upper

Mar 7, 2025

Upper · Passed

The committee(s) on EIG/HOU has scheduled a public hearing on 03-11-25 3:01PM; Conference Room 016 & Videoconference.

upper

Mar 6, 2025

Committee

Referred to EIG/HOU, CPN.

upper

Mar 6, 2025

Introduced

Received from House (Hse. Com. No. 215).

upper

Mar 4, 2025

Lower · Passed

Passed Third Reading as amended in HD 2 with none voting aye with reservations; Representative(s) Marten voting no (1) and Representative(s) Pierick, Ward excused (2). Transmitted to Senate.

lower

Feb 19, 2025

Lower · Passed

The committee on CPC recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 10 Ayes: Representative(s) Matayoshi, Chun, Ilagan, Ichiyama, Iwamoto, Kong, Lowen, Marten, Tam, Pierick; Ayes with reservations: none; Noes: none; and Excused: none.

lower

Feb 13, 2025

Lower · Passed

Report adopted; referred to the committee(s) on CPC with Representative(s) Pierick voting aye with reservations; none voting no (0) and Representative(s) Cochran, Kitagawa, Ward excused (3).

lower

Feb 13, 2025

Committee

Reported from HSG (Stand. Com. Rep. No. 587), recommending referral to CPC.

lower

Feb 12, 2025

Lower · Passed

The committee on HSG recommend that the measure be PASSED, UNAMENDED. The votes were as follows: 8 Ayes: Representative(s) Evslin, Miyake, Grandinetti, Kila, Kitagawa, La Chica, Muraoka, Pierick; Ayes with reservations: none; Noes: none; and 1 Excused: Representative(s) Cochran.

lower

Feb 4, 2025

Committee

Reported from EEP (Stand. Com. Rep. No. 93) as amended in HD 1, recommending passage on Second Reading and referral to HSG.

lower

Jan 28, 2025

Lower · Passed

The committee on EEP recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 5 Ayes: Representative(s) Lowen, Perruso, Kahaloa, Kusch, Quinlan; Ayes with reservations: none; 0 Noes: none; and 1 Excused: Representative(s) Ward.

lower

Jan 21, 2025

Committee

Referred to EEP, HSG, CPC, referral sheet 1

lower

Jan 17, 2025

Introduced

Introduced and Pass First Reading.

lower

Jan 16, 2025

Introduced

Pending introduction.

lower

2 primary · 0 co-sponsors