Army Corps of Engineers district offices serving Hawaii are responsible for water resource projects, regulatory permitting for activities in navigable waters and wetlands, and management of federal recreation areas at Corps-owned reservoirs and lakes throughout the state. Districts are organized by river basin rather than state boundaries, so multiple districts may serve different parts of Hawaii.
Residents and businesses in Hawaii who need regulatory permits for waterway or wetland activities should contact the appropriate USACE district office and request a pre-application consultation before submitting formal permit materials.
Outdoor enthusiasts in Hawaii can find Corps of Engineers recreation areas, campgrounds, and boat ramps by visiting the Corps' recreation portal. Camping reservations at Corps-managed facilities in Hawaii are typically made through recreation.gov well in advance during peak summer months.