Hawaii bills · 2026 Regular Session

Hawaii HB 1728

RELATING TO RAINWATER CATCHMENT SYSTEMS.

1. Introduced
2. In committee
3. Passed House
4. Passed Senate
5. To Governor
6. Became law

Sponsors

• PERRUSO (Democratic)
• SOUZA (Republican)
• EVSLIN (Democratic)
• AMATO (Democratic)
• BELATTI (Democratic)
• POEPOE (Democratic)
• GARRETT (Democratic)
• GRANDINETTI (Democratic)
• ILAGAN (Democratic)
• KEOHOKAPU-LEE LOY (Democratic)
• KILA (Democratic)
• KUSCH (Democratic)
• MARTEN (Democratic)
• MIYAKE (Democratic)
• MORIKAWA (Democratic)
• TAKAYAMA (Democratic)
• REYES ODA (Republican)
• TARNAS (Democratic)
• SHIMIZU (Republican)

Cosponsors (1)

• Matayoshi (Democratic)

Summary

Text versions

• HB1728
• HB1728_HD1
• HB1728_SD1
• HB1728_CD1

Roll-call votes

State vote data last updated Oct 15, 2026, 8:06 AM.

Actions

• Jan 20, 2026 · House
  Prefiled.
• Jan 21, 2026 · House
  Introduced and Pass First Reading.
• Jan 26, 2026 · House
  Referred to WAL, JHA, referral sheet 1
• Jan 30, 2026 · House
  Bill scheduled to be heard by WAL on Tuesday, 02-03-26 9:00AM in House conference room 411 VIA VIDEOCONFERENCE.
• Feb 3, 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.
• Feb 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.
• Feb 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).
• Feb 27, 2026 · House
  Bill scheduled to be heard by JHA on Wednesday, 03-04-26 2:00PM in House conference room 325 VIA VIDEOCONFERENCE.
• Mar 4, 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.
• Mar 6, 2026 · House
  Reported from JHA (Stand. Com. Rep. No. 1184-26), recommending passage on Third Reading.
• Mar 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.
• Mar 12, 2026 · Senate
  Received from House (Hse. Com. No. 273).
• Mar 12, 2026 · Senate
  Passed First Reading.
• Mar 12, 2026 · Senate
  Referred to EIG/WLA, JDC.
• Mar 16, 2026 · Senate
  The committee(s) on EIG/WLA has scheduled a public hearing on 03-19-26 3:00PM; Conference Room 224 & Videoconference.
• Mar 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.
• Mar 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.
• Mar 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.
• Mar 30, 2026 · Senate
  Report adopted; Passed Second Reading, as amended (SD 1) and referred to JDC.
• Apr 1, 2026 · Senate
  The committee(s) on JDC will hold a public decision making on 04-07-26 10:15AM; Conference Room 016 & Videoconference.
• Apr 7, 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.
• Apr 10, 2026 · Senate
  Reported from JDC (Stand. Com. Rep. No. 3748) with recommendation of passage on Third Reading.
• Apr 10, 2026 · Senate
  One Day Notice 04-14-26.
• Apr 14, 2026 · Senate
  Report adopted; Passed Third Reading. Ayes, 25; Aye(s) with reservations: none . Noes, 0 (none). Excused, 0 (none). Transmitted to House.
• Apr 14, 2026 · House
  Returned from Senate (Sen. Com. No. 614) in amended form (SD 1).
• Apr 16, 2026 · House
  House disagrees with Senate amendment (s).
• Apr 17, 2026 · Senate
  Received notice of disagreement (Hse. Com. No. 780).
• Apr 20, 2026 · House
  House Conferees Appointed: Hashem, Tarnas Co-Chairs; Souza.
• Apr 20, 2026 · Senate
  Received notice of appointment of House conferees (Hse. Com. No. 786).
• Apr 20, 2026 · Senate
  Senate Conferees Appointed: Wakai Chair; Lee, C., San Buenaventura Co-Chairs; Fevella.
• Apr 20, 2026 · House
  Received notice of Senate conferees (Sen. Com. No. 713).
• Apr 27, 2026 · Senate
  Conference committee meeting scheduled for 04-29-26 10:50AM; Conference Room 325.
• Apr 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..
• Apr 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.
• Apr 29, 2026 · House
  Reported from Conference Committee (Conf Com. Rep. No. 84-26) as amended in (CD 1).
• Apr 29, 2026 · House
  Forty-eight (48) hours notice Wednesday 05-06-26.
• Apr 29, 2026 · Senate
  Reported from Conference Committee as amended CD 1 (Conf. Com. Rep. No. 84-26).
• Apr 29, 2026 · Senate
  48 Hrs. Notice (as amended CD 1) 05-06-26
• May 6, 2026 · Senate
  Passed Final Reading, as amended (CD 1). Ayes, 25; Aye(s) with reservations: none . 0 No(es): none. 0 Excused: none.
• May 6, 2026 · House
  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 · House
  Received notice of Final Reading (Sen. Com. No. 816).
• May 8, 2026 · Senate
  Received notice of passage on Final Reading in House (Hse. Com. No. 888).
• May 7, 2026 · House
  Transmitted to Governor.
• Jul 9, 2026 · Senate
  Act 209, 07/08/2026 (Gov. Msg. No. 1311).
• Jul 9, 2026 · House
  Act 209, on 07/08/2026 (Gov. Msg. No. 1311).