Haw. Rev. Stat. § 205-12
The appropriate officer or agency charged with the administration of county zoning laws shall enforce within each county the use classification districts adopted by the land use commission and the restriction on use and the condition relating to agricultural districts under section 205-4.5 and shall report to the commission all violations.
HRS § 205-12
Attorney General Opinions
Counties' responsibility for enforcement includes taking necessary actions against violators; such enforcement covers all land use district classifications and land use district regulations, except those relating to conservation districts. Att. Gen. Op. 70-22.
Law Journals and Reviews
"Urban Type Residential Communities in the Guise of Agricultural Subdivisions:" Addressing an Impermissible Use of Hawaii's Agricultural District. 25 UH L. Rev. 199.