RCW 89.30.586Assessments in general improvement or divisional district—Values on roll are conclusive, when.The values of land fixed by the secretary on the district assessment roll shall be conclusive upon all persons unless challenged before the district board at the time of the equalization of said roll.[ 1927 c 254 s 196; RRS s 7402-196. Formerly RCW 89.26.740, part.]
Washington Legal Code