All or any portion of any assessment of state-assessed property heretofore or hereafter levied may, on satisfactory proof, be canceled by the board if it was made:
(a) More than once.
(b) Erroneously or illegally.
(c) On improvements when the improvements did not exist on the lien date.
(Amended by Stats. 1957, Ch. 155.)
Last modified: October 25, 2018