Hawaii Supreme Court Reviews Maui Coastal Development Rule Challenge

Hawaii Supreme Court reviews Maui Tomorrow Foundation’s challenge to SMA rules.

In November 2023, the Maui Planning Commission revised its coastal land use regulations under the Special Management Area (SMA) framework. The SMA is a Hawaii state statute designed to protect sensitive coastal zones by requiring permits for development projects that may affect these areas. The new rules introduced categorical exemptions allowing certain projects to proceed without prior permit approval if they likely have minimal environmental impact.

These exemptions sparked concerns that the Planning Commission effectively shifted responsibility for environmental assessments from regulatory authorities to project developers, potentially weakening public and environmental oversight.

In August 2024, the Maui Tomorrow Foundation, an environmental nonprofit, sued to block the exemptions. It argued the rules violate state law by delegating environmental review authority to developers rather than the County or State agencies. Vice President Lucienne de Naie said, "Unregulated activity in the special management area clearly has the potential to impact Maui’s coastal ecosystems." The Foundation emphasized SMA’s purpose of ensuring robust environmental scrutiny before development.

The Maui Environmental Court agreed, invalidating the new SMA exemptions in November 2024. The court found that the Planning Commission exceeded its statutory authority under Hawaii administrative law by allowing developers to self-assess environmental impacts.

Maui County appealed the decision, arguing that the rule revisions provide needed clarity and flexibility in permitting procedures. Mayor Mike Victorino highlighted that the Supreme Court's review addresses broader implications for homeowners and landowners subject to SMA regulations.

As of June 2026, the Hawaii Supreme Court is examining the appeal. The ruling will clarify SMA rules’ scope and potentially reshape coastal development governance in Hawaii. For legal professionals working in land use or environmental compliance, this decision signals important trends in regulatory delegation and environmental oversight.

Yes, but: The County argues the exemptions aid regulatory efficiency and reduce red tape for low-impact projects, which could benefit property owners and developers.

What's next: The Hawaii Supreme Court’s ruling is expected later in 2026, potentially setting precedent for SMA interpretations statewide.