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HB510 • 2026

RELATING TO DECLARATION OF WATER SHORTAGE AND EMERGENCY.

RELATING TO DECLARATION OF WATER SHORTAGE AND EMERGENCY.

Active

The official status still shows this bill as active or still awaiting another formal step.

Sponsor
ICHIYAMA, HASHEM, TARNAS
Last action
2026-04-17
Official status
Re-Referred to WLA, JDC.
Effective date
Not listed

Plain English Breakdown

The candidate explanation included claims about declaring emergencies that are not supported by the official source material.

Rules for Declaring Water Shortages and Emergencies

This bill amends the conditions, manner, and areas in which the Commission on Water Resource Management can declare water shortages and emergencies, sets limits on these declarations, and requires notifications to be sent out.

What This Bill Does

  • Amends the conditions, manner, and areas in which the Commission on Water Resource Management (CWRM) can declare water shortages and emergencies.
  • Limits a water shortage declaration to ninety days unless extended by CWRM.
  • Restricts water usage for permit holders to twenty percent of their last reported monthly use during shortages.
  • Requires CWRM to maintain a list of people who want to be notified about water shortages and send them updates.
  • Ensures that notices about water shortages are published in newspapers and on the CWRM website.

Who It Names or Affects

  • The Commission on Water Resource Management (CWRM)
  • People with water permits
  • Residents who want to be notified of water shortages

Terms To Know

Commission on Water Resource Management (CWRM)
A government agency that manages and regulates water resources in Hawaii.
Water shortage declaration
An official statement by CWRM declaring a lack of available water for an area.

Limits and Unknowns

  • The bill does not specify what happens if the ninety-day limit on declarations is reached and more time is needed.
  • It's unclear how CWRM will handle requests to extend the declaration period beyond ninety days.
  • The effectiveness date of July 1, 2040, means there is a long delay before this bill would take effect.

Amendments

These notes stay tied to the official amendment files and metadata from the legislature.

HD1

1

Hawaii published version HD1

Plain English: This amendment allows the Commission on Water Resource Management to declare water shortages and emergencies in areas both inside and outside designated water management areas, and requires them to provide notice through newspapers and their website.

  • The commission can now declare a water shortage or emergency within all or part of an area, whether inside or outside of a water management area.
  • The criteria for determining when a water shortage exists are expanded to include impacts from the climate crisis.
  • Owners and operators of wells and stream diversion works located outside of water management areas must comply with restrictions imposed by the commission during shortages.
  • Notice of a declared water shortage or emergency must be published in newspapers and on the commission's website, ensuring all users are informed.
  • The amendment text does not specify how exactly the criteria for determining when a water shortage exists will be expanded to include climate crisis impacts.
  • It is unclear what specific actions the commission can take beyond imposing restrictions on permittees and well/stream diversion operators during emergencies.
SD1

3

Hawaii published version SD1

Plain English: This amendment allows the Commission on Water Resource Management to declare water shortages and emergencies outside of designated water management areas, affecting well owners and stream diversion operators.

  • The commission can now declare a water shortage in any area, whether inside or outside of a water management area.
  • Restrictions can be imposed on permit holders and well owners/stream diversion operators located outside of water management areas to protect water resources.
  • A notice of the water shortage must be published regularly until the declaration is rescinded.
  • The amendment text does not specify how exactly the commission will determine when a water shortage exists in non-designated areas, which may require further clarification or rules to implement effectively.
SD2

5

Hawaii published version SD2

Plain English: The amendment allows the commission on water resource management to declare water shortages outside of designated water management areas and imposes restrictions on well owners and stream diversion operators.

  • Allows the commission to declare a water shortage within or outside of a water management area when insufficient water is available to meet permit requirements.
  • Imposes usage restrictions up to 20% for permittees and well/stream diversion operators located outside of water management areas.
  • Requires the commission to notify all affected parties via mail and email about changes in their permits during a shortage.
  • The amendment text is complex, and some parts are bracketed or stricken, making it unclear how certain provisions will be implemented.

Bill History

  1. 2026-04-17 S

    Re-Referred to WLA, JDC.

  2. 2026-04-02 S

    Received notice of the discharge of all House Conferees (Hse. Com. No. 457).

  3. 2026-04-01 H

    House Conferee(s) discharged.

  4. 2025-12-08 D

    Carried over to 2026 Regular Session.

  5. 2025-04-15 S

    Received notice of appointment of House conferees (Hse. Com. No. 732).

  6. 2025-04-14 H

    House Conferees Appointed: Hashem, Tarnas Co-Chairs; Ichiyama, Lamosao, Shimizu.

  7. 2025-04-11 S

    Received notice of disagreement (Hse. Com. No. 704).

  8. 2025-04-10 H

    House disagrees with Senate amendment (s).

  9. 2025-04-08 H

    Returned from Senate (Sen. Com. No. 651) in amended form (SD 2).

  10. 2025-04-08 S

    Report Adopted; Passed Third Reading, as amended (SD 2). Ayes, 23; Aye(s) with reservations: none. Noes, 2 (Senator(s) Awa, DeCorte). Excused, 0 (none). Transmitted to House.

  11. 2025-04-04 S

    48 Hrs. Notice 04-08-25.

  12. 2025-04-04 S

    Reported from JDC (Stand. Com. Rep. No. 1718) with recommendation of passage on Third Reading, as amended (SD 2).

  13. 2025-03-27 S

    The committee(s) on JDC recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in JDC were as follows: 4 Aye(s): Senator(s) Rhoads, Gabbard, Chang, Awa; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) San Buenaventura.

  14. 2025-03-25 S

    The committee(s) on JDC will hold a public decision making on 03-27-25 10:40AM; Conference Room 016 & Videoconference.

  15. 2025-03-21 S

    The committee(s) on JDC will hold a public decision making on 03-25-25 10:01AM; Conference Room 016 & Videoconference.

  16. 2025-03-21 S

    Report adopted; Passed Second Reading, as amended (SD 1) and referred to JDC.

  17. 2025-03-21 S

    Reported from WTL (Stand. Com. Rep. No. 1214) with recommendation of passage on Second Reading, as amended (SD 1) and referral to JDC.

  18. 2025-03-14 S

    The committee(s) on WTL recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in WTL were as follows: 4 Aye(s): Senator(s) Inouye, Elefante, Chang, DeCorte; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) McKelvey.

  19. 2025-03-10 S

    The committee(s) on WTL has scheduled a public hearing on 03-14-25 1:00PM; Conference Room 229 & Videoconference.

  20. 2025-03-06 S

    Referred to WTL, JDC.

  21. 2025-03-06 S

    Passed First Reading.

  22. 2025-03-06 S

    Received from House (Hse. Com. No. 250).

  23. 2025-03-04 H

    Passed Third Reading with Representative(s) Shimizu voting aye with reservations; Representative(s) Alcos, Garcia, Kong, Muraoka voting no (4) and Representative(s) Pierick, Ward excused (2). Transmitted to Senate.

  24. 2025-02-28 H

    Reported from JHA (Stand. Com. Rep. No. 1085), recommending passage on Third Reading.

  25. 2025-02-27 H

    The committee on JHA recommend that the measure be PASSED, UNAMENDED. The votes were as follows: 9 Ayes: Representative(s) Tarnas, Poepoe, Belatti, Hashem, Kahaloa, Perruso, Takayama, Todd; Ayes with reservations: Representative(s) Shimizu; 1 Noes: Representative(s) Garcia; and 1 Excused: Representative(s) Cochran.

  26. 2025-02-25 H

    Bill scheduled to be heard by JHA on Thursday, 02-27-25 2:00PM in House conference room 325 VIA VIDEOCONFERENCE.

  27. 2025-02-11 H

    Passed Second Reading as amended in HD 1 and referred to the committee(s) on JHA with Representative(s) Garcia voting aye with reservations; none voting no (0) and Representative(s) Cochran, Ward excused (2).

  28. 2025-02-11 H

    Reported from WAL (Stand. Com. Rep. No. 362) as amended in HD 1, recommending passage on Second Reading and referral to JHA.

  29. 2025-02-06 H

    The committee on WAL recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 9 Ayes: Representative(s) Hashem, Lamosao, Belatti, Iwamoto, Poepoe, Woodson, Souza; Ayes with reservations: Representative(s) Morikawa, Shimizu; Noes: none; and 1 Excused: Representative(s) Ichiyama.

  30. 2025-02-04 H

    Bill scheduled to be heard by WAL on Thursday, 02-06-25 9:00AM in House conference room 411 VIA VIDEOCONFERENCE.

  31. 2025-01-21 H

    Referred to WAL, JHA, referral sheet 2

  32. 2025-01-21 H

    Introduced and Pass First Reading.

  33. 2025-01-17 H

    Pending introduction.

Official Summary Text

RELATING TO DECLARATION OF WATER SHORTAGE AND EMERGENCY.
CWRM; Water Shortage and Emergency; Water Shortage Declaration; Notice
Amends the conditions, manner, and areas in which the Commission on Water Resource Management can declare and provide notice of water shortages and emergencies. Limits the duration of a water shortage declaration to ninety days. Limits water usage restrictions imposed on a permittee or owner and operator to twenty per cent of the permittee's or owner and operator's last reported monthly use. Requires CWRM to maintain a list of names and postal or email addresses of persons who request notification of a water shortage declaration and send them a copy of a notice of a water shortage declaration whenever water shortage is declared. Effective 7/1/2040. (SD2)

Current Bill Text

Read the full stored bill text
HB510

HOUSE OF REPRESENTATIVES

H.B. NO.

510

THIRTY-THIRD LEGISLATURE, 2025

STATE OF HAWAII

A BILL FOR AN ACT

relating
to declaration of water shortage and emergency
.

BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF HAWAII:

����
SECTION
1.
�
The legislature finds that the
commission on water resource management must formulate water shortage plans and
adopt a reasonable system of permit classification through rulemaking to
properly plan for future water shortages and provide stakeholders an
opportunity to participate in the process.
�

With such plans and permit classifications, future restrictions on water
use would be applied uniformly and individual users would know in advance their
relative priority during periods of water shortage.

����
The
legislature further finds that the commission on water resource management should
have the ability to adopt water shortage plans, permit classifications, and
criteria outside of water management areas and should apply these plans to well
and stream diversion works owners and operators.
�
As recent droughts have revealed, water
shortages and emergencies can occur quickly.
�

In 2024, all islands experienced drought conditions, and many areas
suffered from severe to extreme drought.
�

Therefore, it is necessary to ensure effective and transparent planning
for water shortages within and outside of designated water management areas.

����
Accordingly,
the purpose of this Act is to
amend the conditions, manner, and areas in
which the commission on water resource management can declare and provide
notice of water shortages and emergencies.

����
SECTION 2.
�

Section 174C-62, Hawaii Revised Statutes,
is amended to read as follows:

����
"
[
[
]
�17
4C-62[
]
]

�
Declaration of
water shortage
.
�
(a)
�

The commission shall
, by rule,
formulate a plan for
implementation during periods of water shortage.
�
As a part of the plan, the commission shall
,
by rule,
adopt a reasonable system of permit classification according to
source of water supply, method of extraction or diversion, use of water, or a
combination thereof.

����
(b)
�

The commission[
, by rule,
] may declare that a water shortage
exists within all or part of an area
, whether within or outside of a water
management area,
when insufficient water is available to meet the
requirements of the permit system or when conditions are such as to require a
temporary reduction in total water use within the area to protect water
resources from serious harm.
�
The
commission shall publish
, by rule,
a set of criteria for determining
when a water shortage exists[
.
]
, including but not limited to impacts
and effects of the climate crisis.

����
(c)
�

In accordance with the plan adopted under subsection (a), the commission
may impose such restrictions on one or more classes of permits
and
outside of management areas on well and stream diversion works
owners and operators

as
may be necessary to protect the water resources of the area from serious harm
and to restore them to their previous
water quantity or chloride level

condition.

����
[
(d)
�

A declaration of water shortage and any measures adopted pursuant
thereto may be rescinded by rule by the commission.

����
(e)
]
(d)
�
When
a water shortage is declared, the commission shall cause a notice [
thereof
]

of the water shortage
to be published in a prominent place in a
newspaper of general circulation throughout the area[
.
]
and on the
commission's website.
�
The notice
shall be published each day for the first week of the shortage and once a week
[
thereafter
]
for four months, followed by monthly publications

until the declaration is rescinded.
�
The
notice shall remain on the commission's website until the declaration is
rescinded.
�
Publication of [
such
]

the
notice shall serve as notice to all water users in the area of the
condition of water shortage.

����
[
(f)
]
(e)
�
The
commission shall cause each permittee in the area to be notified by regular
mail
and, if the permittee's electronic mail address is known, by electronic
mail
of any change in the conditions of the permittee's permit, any
suspension [
thereof,
]
of the permittee's permit,
or of any other
restriction on the use of water for the duration of the water shortage.

����
[
(g)
]
(f)
�
If an emergency condition arises due to a
water shortage within any area, whether within or outside of a water management
area, and if the commission finds that the restrictions imposed under
subsection (c) are not sufficient to protect the public health, safety, or
welfare, or the health of animals, fish, or aquatic life, or a public water
supply, or recreational, municipal, agricultural, or other reasonable uses, the
commission may issue orders reciting the existence of such emergency and requiring
that such actions as the commission deems necessary to meet the emergency be
taken, including but not limited to apportioning, rotating, limiting, or
prohibiting the use of the water resources of the area.
�
Any party to whom an emergency order is
directed may challenge such an order but shall immediately comply with the
order, pending disposition of the party's challenge.
�
The commission shall give precedence to a
hearing on such challenge over all other pending matters.
"

����
SECTION 3.
�
If any provision of this Act, or the
application thereof to any person or circumstance, is held invalid, the
invalidity does not affect other provisions or applications of the Act that can
be given effect without the invalid provision or application, and to this end
the provisions of this Act are severable.

����
SECTION
4.
�
Statutory material to be repealed is
bracketed and stricken.
�
New statutory
material is underscored.

����
SECTION 5.
�
This Act shall take effect upon its approval.

INTRODUCED BY:

_____________________________

Report Title:

Commission on Water Resource Management; Water Shortage and
Emergency; Declaration; Notice

Description:

Amends the conditions, manner, and areas in which the
Commission
on Water Resource Management
can declare
and provide notice of water shortages and emergencies.

The summary description
of legislation appearing on this page is for informational purposes only and is
not legislation or evidence of legislative intent.