1. The decree entered by the court, as provided by NRS 533.185, shall be final and shall be conclusive upon all persons and rights lawfully embraced within the adjudication; but the State Engineer or any party or adjudicated claimant upon any stream or stream system affected by such decree may, at any time within 3 years from the entry thereof, apply to the court for a modification of the decree, insofar only as the decree fixed the duty of water, and upon the hearing of such motion the court may modify such decree increasing or decreasing the duty of water, consistent with good husbandry, and consistent with the principle that actual and beneficial use shall be the measure and limit of the right.
2. Notice of application shall be given as in civil cases.