SB 2401 Hawaii Senate · 2026 Regular Session

RELATING TO REGIONAL SHORELINE MITIGATION DISTRICTS.

Summary
Requires the Office of Planning and Sustainable Development to plan and serve in a coordinating role to develop shoreline adaptation pathways plans for regional shoreline mitigation districts designated by OPSD. Establishes procedures for the review of state and county permits associated with regional shoreline mitigation districts. (CD2)
Bill status signed all 5 stages cleared
Introduction
Jan 2026
Committee Review
May 2026
Senate Passage
May 2026
House Passage
May 2026
Signed into Law
Jul 2026
Introduced Jan 20, 2026 Signed Jul 9, 2026
Maddy AI version diff · 7 comparisons

What changed between versions

SB2401_HD2 SB2401_SD1 · 8 edits
MODERATE
This bill shifts from creating a new 'mitigation' framework to establishing a broader 'adaptation' planning system focused on collaboration rather than just hazard reduction. It redefines the Office of Planning and Sustainable Development's role to coordinate with counties and communities on long-term strategies like managed retreat, while adding specific requirements for financing tools and cultural engagement. The legislation also updates related coastal zone management laws to explicitly integrate these adaptation plans into permitting processes and appropriates funds for implementation.
Scope change
The bill's scope expanded from a narrow focus on 'mitigation' (preventing damage) to a comprehensive 'adaptation' framework that includes managed retreat and relocation. Applicability was broadened to require collaboration with a wider range of stakeholders, including local businesses and community organizations, and to integrate adaptation planning into existing state coastal zone management policies.
DEFINITION

The term 'regional shoreline mitigation districts' was changed to 'regional shoreline adaptation districts' to reflect a shift from preventing erosion to adapting to it.

REQUIREMENT

New requirements mandate that adaptation plans include specific financing tools (like special assessment districts and tax increment financing) and must engage in culturally informed, community-engaged planning.

The Office of Planning and Sustainable Development is now required to coordinate directly with the Department of Land and Natural Resources, county planning departments, and affected property owners during the planning process.

ELIGIBILITY

Districts are no longer strictly defined by 'mitigation' criteria but by 'potential' adaptation needs based on sediment cells, erosion rates, and traditional land divisions (ahupuaa).

TECHNICAL

New definitions were added for 'shoreline adaptation pathways' and 'functionally connected sediment cell' to clarify that measures include temporary, permanent, and retreat options.

TIMELINE

The effective date was moved from the distant future (July 1, 3000) to January 1, 2065, with funding and hiring provisions taking effect immediately in July 2026.

FISCAL

New appropriations were added to fund the identification of districts, interagency coordination, plan review, and the hiring of a temporary planning analyst.

ENFORCEMENT

Permitting rules were updated to require applicants to submit adaptation pathways plans, which the department must consider as part of the official record.

Floor votes

How they voted

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

Actions timeline

Total actions
64
Key actions
26
Committee
23
Amendments
6
May 8, 2026
Upper · Passed
Passed Final Reading, as amended (CD 2). Ayes, 24; Aye(s) with reservations: none. Noes, 0 (none). Excused, 1 (Senator(s) San Buenaventura).
upper
May 8, 2026
Lower · Passed
Passed Final Reading as amended in CD 2 with none voting aye with reservations; Representative(s) Amato, Iwamoto, Perruso, Poepoe voting no (4) and none excused (0).
lower
May 6, 2026
Introduced
Report filed.
upper
May 6, 2026
Upper · Passed
Separated Committee Report.
upper
May 6, 2026
Upper · Passed
Floor amendment adopted as amended (CD 2).
upper
May 6, 2026
Introduced
Floor Amendment No. 15 offered.
upper
May 6, 2026
Lower · Passed
Floor amendment adopted as amended CD 2 with none voting no and none excused.
lower
May 6, 2026
Introduced
Floor Amendment No. 12 offered by Rep. Hashem.
lower
May 1, 2026
Lower · Passed
Reported from Conference Committee (Conf Com. Rep. No. 217-26) as amended in (CD 1).
lower
May 1, 2026
Introduced
48 Hrs. Notice (as amended CD 1) 05-06-26.
upper
May 1, 2026
Upper · Passed
Reported from Conference Committee as amended CD 1 (Conf. Com. Rep. No. 217-26).
upper
May 1, 2026
Lower · Passed
The Conference Committee recommends that the measure be Passed, with Amendments. The votes were as follows: 3 Ayes: Representative(s) Hashem, Morikawa, Shimizu; Ayes with reservations: none; 0 Noes: none; and 0 Excused: none.
lower
May 1, 2026
Upper · Passed
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) Lee, C., Moriwaki, Lamosao; Aye(s) with reservations: none ; 0 No(es): none; and 0 Excused: none.
upper
May 1, 2026
Upper · Passed
Conference committee meeting to reconvene on 05-01-26 5:00 PM; Conference Room 016.
upper
May 1, 2026
Lower · Passed
Conference Committee Meeting will reconvene on Friday, 05-01-26 at 12:45PM in Conference Room 229.
lower
May 1, 2026
Upper · Passed
Conference committee meeting to reconvene on 05-01-26 11:35 AM; Conference Room 229.
upper
Apr 30, 2026
Upper · Passed
Conference committee meeting to reconvene on 05-01-26 9:00AM; Conference Room 229.
upper
Apr 29, 2026
Upper · Passed
Conference committee meeting to reconvene on 04-30-26 9:00AM; Conference Room 229.
upper
Apr 28, 2026
Upper · Passed
Conference committee meeting to reconvene on 04-29-26 9:00AM; Conference Room 229.
upper
Apr 27, 2026
Upper · Passed
Conference committee meeting to reconvene on 04-28-26 9:00AM; CR 229.
upper
Apr 24, 2026
Upper · Passed
Conference committee meeting scheduled for 04-27-26 9:00AM; CR 229.
upper
Apr 16, 2026
Amended
Senate disagrees with House amendments.
upper
Apr 16, 2026
Introduced
Received from House (Hse. Com. No. 656).
upper
Apr 14, 2026
Lower · Passed
Passed Third Reading as amended in HD 2 with Representative(s) Alcos, Kapela, Perruso, Poepoe, Shimizu, Souza voting aye with reservations; Representative(s) Amato, Cochran, Iwamoto, Pierick voting no (4) and none excused (0). Transmitted to Senate.
lower
Apr 7, 2026
Lower · Passed
The committee on FIN recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 15 Ayes: Representative(s) Todd, Takenouchi, Hartsfield, Hussey, Keohokapu-Lee Loy, Kitagawa, Kusch, Lee, M., Miyake, Perruso, Templo, Yamashita, Gedeon, Reyes Oda; Ayes with reservations: Representative(s) Alcos; Noes: none; and 1 Excused: Representative(s) Morikawa.
lower
Mar 24, 2026
Committee
Reported from WAL (Stand. Com. Rep. No. 1343-26) as amended in HD 1, recommending passage on Second Reading and referral to FIN.
lower
Mar 19, 2026
Lower · Passed
The committee on WAL recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 7 Ayes: Representative(s) Hashem, Morikawa, Ichiyama, Poepoe, Woodson, Souza; Ayes with reservations: Representative(s) Shimizu; 1 Noes: Representative(s) Iwamoto; and 1 Excused: Representative(s) Belatti.
lower
Mar 12, 2026
Committee
Referred to WAL, FIN, referral sheet 17
lower
Mar 10, 2026
Introduced
Received from Senate (Sen. Com. No. 231) in amended form (SD 1).
lower
Mar 10, 2026
Upper · Passed
Report Adopted; Passed Third Reading. Ayes, 25; Aye(s) with reservations: Senator(s) Rhoads, Richards. Noes, 0 (none). Excused, 0 (none). Transmitted to House.
upper
Mar 4, 2026
Upper · Passed
The committee(s) on WAM recommend(s) that the measure be PASSED, UNAMENDED. The votes in WAM were as follows: 12 Aye(s): Senator(s) Dela Cruz, Moriwaki, DeCoite, Elefante, Hashimoto, Inouye, Kanuha, Kidani, Kim, Lee, C., Wakai; Aye(s) with reservations: Senator(s) Richards ; 0 No(es): none; and 1 Excused: Senator(s) Fevella.
upper
Mar 2, 2026
Upper · Passed
The committee(s) on WAM will hold a public decision making on 03-04-26 10:31AM; Conference Room 211 & Videoconference.
upper
Feb 20, 2026
Upper · Passed
Report adopted; Passed Second Reading, as amended (SD 1) and referred to WAM.
upper
Feb 20, 2026
Committee
Reported from WLA (Stand. Com. Rep. No. 2683) with recommendation of passage on Second Reading, as amended (SD 1) and referral to WAM.
upper
Feb 18, 2026
Upper · Passed
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., Inouye, Lamosao, DeCorte; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) Chang.
upper
Feb 3, 2026
Upper · Passed
The committee(s) on WLA has scheduled a public hearing on 02-06-26 1:00PM; CR 224 & Videoconference.
upper
Jan 28, 2026
Committee
Referred to WLA, WAM.
upper
Jan 21, 2026
Introduced
Introduced and passed First Reading.
upper
Jan 20, 2026
Introduced
Pending Introduction.
upper
2 primary · 0 co-sponsors

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