After the planning commission has approved a redevelopment plan, and upon acceptance thereof by the agency if amended, the agency shall submit the plan to the council which shall hold a public hearing thereon, after giving published notice thereof on three separate days, the first publication to be at least ten days before the date of the hearings, and may approve, amend and approve, or disapprove the plan by resolution; provided that the council shall not approve, or amend and approve, the plan unless it finds that the redevelopment project area is a blighted area within the urban limits of the county; and provided further that any amendment made by the council must be accepted by the agency before final approval by the council. If the council approves a redevelopment plan, published notice of the approval shall be given by at least three publications and further proceedings with respect to the redevelopment project covered by the plan shall be stayed for a period of thirty days after the first publication of the notice. Actions, suits, or proceedings to contest the validity of the proceedings prescribed by the foregoing provisions of this chapter or of the redevelopment plan shall be barred upon the expiration of the period of thirty days, and no action thereafter commenced shall raise any question concerning the validity of the proceedings provided by the foregoing provisions of this chapter or of the redevelopment plan, and in all actions, suits, or proceedings commenced after the expiration of the period of thirty days, except as to matters affecting jurisdiction, the validity of the proceedings prescribed by the foregoing provisions of this chapter and of the plan shall be conclusively presumed. Upon the expiration of the thirty-day period, the agency may further proceed with the redevelopment project or projects covered by the redevelopment plan. Upon acquisition of the lands in the redevelopment project by the agency, the lands shall automatically be rezoned as to land use in conformance with provisions of the approved redevelopment plan.
If at any time after the initial adoption of the redevelopment plan, the agency determines that a change in the plan is in the public interest and in furtherance of the purpose of redevelopment, the plan or any part thereof may be amended by following the same procedure as set forth above for the adoption of the original plan.
HRS § 53-6