# Hawaii HB 1652: RELATING TO STORMWATER MANAGEMENT SYSTEMS.

Hawaii HB 1652, RELATING TO STORMWATER MANAGEMENT SYSTEMS., is a 2025–2026 Regular Session (Year 2) House bill sponsored by Mark J. Hashem (Democratic); status failed, last action 2026-02-25 (The committee(s) on FIN recommend(s) that the measure be deferred.) (as of 2026-11-01).

- Canonical: https://policyrisk.com/state-bill/HI-HB1652-2026
- As of: 2026-11-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Hawaii HB 1652
- State: Hawaii
- Session: 2025–2026 Regular Session (Year 2)
- Title: RELATING TO STORMWATER MANAGEMENT SYSTEMS.
- Status: failed
- Chamber: House
- Introduced: 2026-01-20
- Last action: 2026-02-25, The committee(s) on FIN recommend(s) that the measure be deferred.
- Sponsor: Mark J. Hashem (Democratic)
- Cosponsors: 0
- Subjects: Stormwater Management Systems, Agricultural Infrastructure, Low-Risk Green Stormwater Infrastructure, Counties, WAL, FIN
- Touches household money: no
- Roll calls: 2 (60 yes, 0 no in all)
- Economic provisions PRIA read: 0

## Summary

Exempts agricultural infrastructure and low-risk green stormwater infrastructure from regulations covering retention ponds. Defines agricultural infrastructure and low-risk green stormwater infrastructure. Effective 7/1/3000. (HD1)

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Mark J. Hashem (Democratic), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-02-12 | House | Passed Second Reading as amended in HD 1 and referred to the committee(s) on FIN... | pass | 51 | 0 |   |
| 2026-02-03 | House | The committee on WAL recommend that the measure be PASSED, WITH AMENDMENTS. The ... | pass | 9 | 0 |   |

## Actions (11)

- 2026-02-25: The committee(s) on FIN recommend(s) that the measure be deferred. (House)
- 2026-02-23: The committee(s) on FIN recommend(s) that the measure be deferred until 02-25-26. (House)
- 2026-02-23: Bill scheduled for decision making on Wednesday, 02-25-26 3:30PM in conference room 308 VIA VIDEOCONFERENCE. (House)
- 2026-02-19: Bill scheduled to be heard by FIN on Monday, 02-23-26 2:00PM in House conference room 308 VIA VIDEOCONFERENCE. (House)
- 2026-02-12: Reported from WAL (Stand. Com. Rep. No. 238-26) as amended in HD 1, recommending passage on Second Reading and referral to FIN. (House)
- 2026-02-12: Passed Second Reading as amended in HD 1 and referred to the committee(s) on FIN with none voting aye with reservations; none voting no (0) and none excused (0). (House)
- 2026-02-03: 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. (House)
- 2026-01-30: Bill scheduled to be heard by WAL on Tuesday, 02-03-26 9:00AM in House conference room 411 VIA VIDEOCONFERENCE. (House)
- 2026-01-26: Referred to WAL, FIN, referral sheet 1 (House)
- 2026-01-21: Introduced and Pass First Reading. (House)
- 2026-01-20: Prefiled. (House)

## Bill text

- Bill Text: [PDF](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_HD1_.pdf)
- HB1652_HD1: [HTML](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_HD1_.HTM)
- Original: [HTML](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_.HTM), [PDF](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_.PDF)

## Related bills

- SB 847: RELATING TO PSYCHOLOGISTS. (became law)
- SB 2338: RELATING TO HOUSING. (signed)
- HB 2344: RELATING TO SCHOOL FACILITIES. (signed)
- HB 2023: RELATING TO TRANSPORTATION. (signed)
- HB 2021: RELATING TO TRANSPORTATION. (signed)
- SB 2964: RELATING TO PROPERTY INSURANCE. (signed)

## Sources
- [Bill Text (PDF)](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_HD1_.pdf)
- [HB1652_HD1 (HTML)](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_HD1_.HTM)
- [Original (HTML)](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_.HTM)
- [Original (PDF)](https://data.capitol.hawaii.gov/sessions/session2026/bills/HB1652_.PDF)

## Related
- [SB 847: RELATING TO PSYCHOLOGISTS.](https://policyrisk.com/state-bill/HI-SB847-2026)
- [SB 2338: RELATING TO HOUSING.](https://policyrisk.com/state-bill/HI-SB2338-2026)
- [HB 2344: RELATING TO SCHOOL FACILITIES.](https://policyrisk.com/state-bill/HI-HB2344-2026)
- [HB 2023: RELATING TO TRANSPORTATION.](https://policyrisk.com/state-bill/HI-HB2023-2026)
- [HB 2021: RELATING TO TRANSPORTATION.](https://policyrisk.com/state-bill/HI-HB2021-2026)
- [SB 2964: RELATING TO PROPERTY INSURANCE.](https://policyrisk.com/state-bill/HI-SB2964-2026)
- [Hawaii bills](https://policyrisk.com/states/hawaii/bills)
- [Hawaii state hub](https://policyrisk.com/states/hawaii)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/HI-HB1652-2026 (as of 2026-11-01).