Bill Sponsor
Hawaii House Bill 1728
Session 2026
Relating To Rainwater Catchment Systems.
Became Law
Became Law
Became Law on Jul 9, 2026
Sponsorship by Party
Democrat
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Republican
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House Votes (3)
Senate Votes (5)
Motion Text
The Conference Committee recommends that the measure be Passed, with Amendments.
House Roll Call Votes
Summary
Requires the counties to allow for the installation and operation of rainwater catchment systems for potable and nonpotable uses on all properties. Allows the counties to require registration, inspection, or notification of rainwater catchment systems. (CD1)
07/09/2026
Senate
Act 209, 07/08/2026 (Gov. Msg. No. 1311).
07/09/2026
House
Act 209, on 07/08/2026 (Gov. Msg. No. 1311).
05/08/2026
Senate
Received notice of passage on Final Reading in House (Hse. Com. No. 888).
05/07/2026
House
Transmitted to Governor.
05/06/2026
Senate
Passed Final Reading, as amended (CD 1). Ayes, 25; Aye(s) with reservations: none . 0 No(es): none. 0 Excused: none.
05/06/2026
House
Passed Final Reading as amended in CD 1 with none voting aye with reservations; none voting no (0) and none excused (0).
05/06/2026
House
Received notice of Final Reading (Sen. Com. No. 816).
04/29/2026
Senate
The Conference committee recommends that the measure be PASSED, WITH AMENDMENTS. The votes of the Senate Conference Managers were as follows: 3 Aye(s): Senator(s) Wakai, San Buenaventura, Fevella; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) Lee, C..
04/29/2026
House
The Conference Committee recommends that the measure be Passed, with Amendments. The votes were as follows: 3 Ayes: Representative(s) Hashem, Tarnas, Souza; Ayes with reservations: none; 0 Noes: none; and 0 Excused: none.
04/29/2026
House
Reported from Conference Committee (Conf Com. Rep. No. 84-26) as amended in (CD 1).
04/29/2026
House
Forty-eight (48) hours notice Wednesday 05-06-26.
04/29/2026
Senate
Reported from Conference Committee as amended CD 1 (Conf. Com. Rep. No. 84-26).
04/29/2026
Senate
48 Hrs. Notice (as amended CD 1) 05-06-26
04/27/2026
Senate
Conference committee meeting scheduled for 04-29-26 10:50AM; Conference Room 325.
04/20/2026
House
House Conferees Appointed: Hashem, Tarnas Co-Chairs; Souza.
04/20/2026
Senate
Received notice of appointment of House conferees (Hse. Com. No. 786).
04/20/2026
Senate
Senate Conferees Appointed: Wakai Chair; Lee, C., San Buenaventura Co-Chairs; Fevella.
04/20/2026
House
Received notice of Senate conferees (Sen. Com. No. 713).
04/17/2026
Senate
Received notice of disagreement (Hse. Com. No. 780).
04/16/2026
House
House disagrees with Senate amendment (s).
04/14/2026
Senate
Report adopted; Passed Third Reading. Ayes, 25; Aye(s) with reservations: none . Noes, 0 (none). Excused, 0 (none). Transmitted to House.
04/14/2026
House
Returned from Senate (Sen. Com. No. 614) in amended form (SD 1).
04/10/2026
Senate
Reported from JDC (Stand. Com. Rep. No. 3748) with recommendation of passage on Third Reading.
04/10/2026
Senate
One Day Notice 04-14-26.
04/07/2026
Senate
The committee(s) on JDC recommend(s) that the measure be PASSED, UNAMENDED. The votes in JDC were as follows: 4 Aye(s): Senator(s) Rhoads, Gabbard, Chang, San Buenaventura; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) Awa.
04/01/2026
Senate
The committee(s) on JDC will hold a public decision making on 04-07-26 10:15AM; Conference Room 016 & Videoconference.
03/30/2026
Senate
Reported from EIG/WLA (Stand. Com. Rep. No. 3258) with recommendation of passage on Second Reading, as amended (SD 1) and referral to JDC.
03/30/2026
Senate
Report adopted; Passed Second Reading, as amended (SD 1) and referred to JDC.
03/19/2026
Senate
The committee(s) on WLA recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in WLA were as follows: 4 Aye(s): Senator(s) Lee, C., Chang, Lamosao, DeCorte; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) Inouye.
03/19/2026
Senate
The committee(s) on EIG recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in EIG were as follows: 5 Aye(s): Senator(s) Wakai, Chang, DeCoite, Richards, Fevella; Aye(s) with reservations: none ; 0 No(es): none; and 0 Excused: none.
03/16/2026
Senate
The committee(s) on EIG/WLA has scheduled a public hearing on 03-19-26 3:00PM; Conference Room 224 & Videoconference.
03/12/2026
Senate
Received from House (Hse. Com. No. 273).
03/12/2026
Senate
Passed First Reading.
03/12/2026
Senate
Referred to EIG/WLA, JDC.
03/10/2026
House
Passed Third Reading with Representative(s) Iwamoto voting aye with reservations; none voting no (0) and none excused (0). Transmitted to Senate.
03/06/2026
House
Reported from JHA (Stand. Com. Rep. No. 1184-26), recommending passage on Third Reading.
03/04/2026
House
The committee on JHA recommend that the measure be PASSED, UNAMENDED. The votes were as follows: 8 Ayes: Representative(s) Tarnas, Poepoe, Hashem, Kahaloa, Sayama, Takayama, Garcia, Shimizu; Ayes with reservations: none; Noes: none; and 2 Excused: Representative(s) Belatti, Cochran.
02/27/2026
House
Bill scheduled to be heard by JHA on Wednesday, 03-04-26 2:00PM in House conference room 325 VIA VIDEOCONFERENCE.
02/11/2026
House
Reported from WAL (Stand. Com. Rep. No. 200-26) as amended in HD 1, recommending passage on Second Reading and referral to JHA.
02/11/2026
House
Passed Second Reading as amended in HD 1 and referred to the committee(s) on JHA with none voting aye with reservations; none voting no (0) and Representative(s) Holt excused (1).
02/03/2026
House
The committee on WAL recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 9 Ayes: Representative(s) Hashem, Morikawa, Belatti, Ichiyama, Poepoe, Woodson, Souza; Ayes with reservations: Representative(s) Iwamoto, Shimizu; Noes: none; and Excused: none.
01/30/2026
House
Bill scheduled to be heard by WAL on Tuesday, 02-03-26 9:00AM in House conference room 411 VIA VIDEOCONFERENCE.
01/26/2026
House
Referred to WAL, JHA, referral sheet 1
01/21/2026
House
Introduced and Pass First Reading.
01/20/2026
House
Prefiled.
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HI HB1728 2026 Relating To Rainwater Catchment Systems
Sources
Record Created
Jan 21, 2026 8:59:24 AM
Record Updated
Jul 15, 2026 7:12:17 AM