All appropriations made under the provisions of section 2, chapter 480, Oregon Laws 1965, shall become vested when completed as provided by ORS 537.250. Any person having obtained a vested water right prior to April 19, 1967, under the provisions of section 2, chapter 480, Oregon Laws 1965, may apply to the Water Resources Commission for an increase of vested water rights, as provided by ORS chapter 537.
ORS 538.125