Relating to Rainwater Catchment Systems.

It became law on Jul 9, 2026.

HI HB 1728 · House Bill · 2026

Stage: Became law
Started in: House
Sponsors: 20
Latest action: Jul 9, 2026

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)

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Where it stands

This bill passed and is now law.

Introduced (Done)
Committee (Done)
Floor (Done)
Law (Done)
Jul 9, 2026

What moved

Who is involved

Where it goes next

Once a bill is decided, the questions are about what is done with it in Hawaii.

What an agency writes to carry it outAn agency's name on a lobbying report is not a rulemaking.
Which court can stay or strike itAn opinion listed here is not yet tied to the law it reviewed.
How the place it governs is doingBecoming law is not the result. A number moving is not proof the law moved it.

What it does

Where it stands

What moved

Who is involved

Sponsors

Where it goes next

Work with this bill