HI SB1521

Requires the Office of Planning and Sustainable Development to publish an integrated land use study for agricultural districts that addresses competing land uses and feasibility of meeting the State's climate, sustainability, and housing statutory targets.

Directs the study to incorporate recommendations from the Hawaii 2050 sustainability plan, sea level rise vulnerability reports, managed retreat strategies, and consider the 2022 state land use review and soil classification study.

Mandates updates to state functional plans on energy (Hawaii State Energy Office), agriculture (Department of Agriculture), transportation (Department of Transportation), and tourism (Hawaii Tourism Authority) to align with climate and sustainability targets.

Requires submission of the integrated land use study to the legislature and Land Use Commission no later than 20 days before the 2026 regular session, with updates every 10 years thereafter.

Appropriates $700,000 for fiscal year 2023-2024 and $1,215,000 for fiscal year 2024-2025 to the Office of Planning and Sustainable Development, plus $750,000 annually for two years to various state agencies for functional plan updates.