HI HB1846

Establishes regional shoreline mitigation districts to enable coordinated coastal erosion response among property owners within shared sediment cells or littoral subcells, with the Office of Planning and Sustainable Development serving as the lead agency.

Requires each district to develop a regional coastal erosion and sediment management plan that assesses erosion conditions, identifies allowable emergency structures and long-term solutions (such as beach nourishment, dune restoration, and groins), and outlines financing options.

Streamlines permitting by limiting state and county review of projects consistent with approved regional plans to verification of completeness, plan consistency, and site-specific conditions—without reconsidering issues already resolved during plan approval.

Allows programmatic environmental review under Chapter 343 for regional plans, with subsequent conforming projects exempt from additional environmental assessments.

Authorizes financing through special assessment districts, community facilities districts, tax increment financing, and county-issued bonds at property owners' request.