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
Introduced
Moved
Reached a final decision
Became law
Derived from the official record below.
Officially: “RELATING TO RAINWATER CATCHMENT SYSTEMS.” Read the full text
2025-2026 biennium
What it does
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)
From the official legislative record, shown verbatim. Not legal advice.
Where it is
Show all 45 actions
Prefiled. · Jan 20, 2026
Introduced and Pass First Reading. · Jan 21, 2026
Referred to WAL, JHA, referral sheet 1 · Jan 26, 2026
Bill scheduled to be heard by WAL on Tuesday, 02-03-26 9:00AM in House conference room 411 VIA VIDEOCONFERENCE. · Jan 30, 2026
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 · Feb 3, 2026
Reported from WAL (Stand. Com. Rep. No. 200-26) as amended in HD 1, recommending passage on Second Reading and referral to JHA. · Feb 11, 2026
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). · Feb 11, 2026
Bill scheduled to be heard by JHA on Wednesday, 03-04-26 2:00PM in House conference room 325 VIA VIDEOCONFERENCE. · Feb 27, 2026
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 · Mar 4, 2026
Reported from JHA (Stand. Com. Rep. No. 1184-26), recommending passage on Third Reading. · Mar 6, 2026
Passed Third Reading with Representative(s) Iwamoto voting aye with reservations; none voting no (0) and none excused (0). Transmitted to Senate. · Mar 10, 2026
Received from House (Hse. Com. No. 273). · Mar 12, 2026
Passed First Reading. · Mar 12, 2026
Referred to EIG/WLA, JDC. · Mar 12, 2026
The committee(s) on EIG/WLA has scheduled a public hearing on 03-19-26 3:00PM; Conference Room 224 & Videoconference. · Mar 16, 2026
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: non · Mar 19, 2026
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 reservati · Mar 19, 2026
Reported from EIG/WLA (Stand. Com. Rep. No. 3258) with recommendation of passage on Second Reading, as amended (SD 1) and referral to JDC. · Mar 30, 2026
Report adopted; Passed Second Reading, as amended (SD 1) and referred to JDC. · Mar 30, 2026
The committee(s) on JDC will hold a public decision making on 04-07-26 10:15AM; Conference Room 016 & Videoconference. · Apr 1, 2026
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: n · Apr 7, 2026
Reported from JDC (Stand. Com. Rep. No. 3748) with recommendation of passage on Third Reading. · Apr 10, 2026
One Day Notice 04-14-26. · Apr 10, 2026
Report adopted; Passed Third Reading. Ayes, 25; Aye(s) with reservations: none . Noes, 0 (none). Excused, 0 (none). Transmitted to House. · Apr 14, 2026
Returned from Senate (Sen. Com. No. 614) in amended form (SD 1). · Apr 14, 2026
House disagrees with Senate amendment (s). · Apr 16, 2026
Received notice of disagreement (Hse. Com. No. 780). · Apr 17, 2026
House Conferees Appointed: Hashem, Tarnas Co-Chairs; Souza. · Apr 20, 2026
Received notice of appointment of House conferees (Hse. Com. No. 786). · Apr 20, 2026
Senate Conferees Appointed: Wakai Chair; Lee, C., San Buenaventura Co-Chairs; Fevella. · Apr 20, 2026
Received notice of Senate conferees (Sen. Com. No. 713). · Apr 20, 2026
Conference committee meeting scheduled for 04-29-26 10:50AM; Conference Room 325. · Apr 27, 2026
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 · Apr 29, 2026
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; · Apr 29, 2026
Reported from Conference Committee (Conf Com. Rep. No. 84-26) as amended in (CD 1). · Apr 29, 2026
Forty-eight (48) hours notice Wednesday 05-06-26. · Apr 29, 2026
Reported from Conference Committee as amended CD 1 (Conf. Com. Rep. No. 84-26). · Apr 29, 2026
48 Hrs. Notice (as amended CD 1) 05-06-26 · Apr 29, 2026
Passed Final Reading, as amended (CD 1). Ayes, 25; Aye(s) with reservations: none . 0 No(es): none. 0 Excused: none. · May 6, 2026
Passed Final Reading as amended in CD 1 with none voting aye with reservations; none voting no (0) and none excused (0). · May 6, 2026
Received notice of Final Reading (Sen. Com. No. 816). · May 6, 2026
Received notice of passage on Final Reading in House (Hse. Com. No. 888). · May 8, 2026
Transmitted to Governor. · May 7, 2026
Act 209, 07/08/2026 (Gov. Msg. No. 1311). · Jul 9, 2026
Act 209, on 07/08/2026 (Gov. Msg. No. 1311). · Jul 9, 2026
The numbers
20
sponsors on the bill
Sponsors
EVSLINAMATOBELATTIGARRETTGRANDINETTIILAGANKEOHOKAPU-LEE LOYKILAKUSCHMARTENMIYAKEMORIKAWAPERRUSOPOEPOEREYES ODASHIMIZUSOUZATAKAYAMATARNASMatayoshi
Recorded votes
Passed Final Reading, as amended (CD 1).Senate · 2026-05-06 · Ayes 25, Aye(s) with reservations 0
Passed Final Reading as amended in CD 1 with noneHouse · 2026-05-06 · Aye(s) with reservations 0, Noes 0, Excused 0
The Conference committee recommends that the measure be PASSED, WITH AMENDMENTS. The votes of the Senate Conference Managers were as follows:Senate · 2026-04-29 · Aye(s) 3, Aye(s) with reservations 0, No(es) 0, Excused 1
The Conference Committee recommends that the measure be Passed, with Amendments. The votes were as follows:House · 2026-04-29 · Ayes 3, Ayes with reservations 0, Noes 0, Excused 0
Report adopted; Passed Third Reading.Senate · 2026-04-14 · Ayes 25, Aye(s) with reservations 0, Noes 0, Excused 0
The committee(s) on JDC recommend(s) that the measure be PASSED, UNAMENDED. The votes in JDC were as follows:Senate · 2026-04-07 · Aye(s) 4, Aye(s) with reservations 0, No(es) 0, Excused 1
The committee(s) on EIG recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in EIG were as follows:Senate · 2026-03-19 · Aye(s) 5, Aye(s) with reservations 0, No(es) 0, Excused 0
The committee(s) on WLA recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in WLA were as follows:Senate · 2026-03-19 · Aye(s) 4, Aye(s) with reservations 0, No(es) 0, Excused 1
Passed Third Reading withHouse · 2026-03-10 · Aye(s) with reservations 1, Noes 0, Excused 0
The committee on JHA recommend that the measure be PASSED, UNAMENDED. The votes were as follows:House · 2026-03-04 · Ayes 8, Ayes with reservations 0, Noes 0, Excused 2
Passed Second Reading as amended in HD 1 and referred to the committee(s) on JHA with noneHouse · 2026-02-11 · Aye(s) with reservations 0, Noes 0, Excused 1
The committee on WAL recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows:House · 2026-02-03 · Ayes 7, Ayes with reservations 2, Noes 0, Excused 0
Roll-call results shown verbatim from the Hawaii legislature’s records. A result reflects that roll call’s own motion, not the bill’s overall outcome.
Every fact on this page links to its source, starting with the official bill record. Last action: Act 209, on 07/08/2026 (Gov. Msg. No. 1311). (Jul 9, 2026).