If the appeal is not denied within thirty days after the notice is filed with the board, the appeal shall be deemed to have been granted: PROVIDED, That the board may extend the time within which it may act upon such appeal, not exceeding thirty days.
[ 1971 ex.s. c 289 § 70; 1961 c 23 § 51.52.090. Prior: 1957 c 70 § 59; 1951 c 225 § 9; prior: 1949 c 219 § 6, part; 1943 c 280 § 1, part; 1931 c 90 § 1, part; 1929 c 132 § 6, part; 1927 c 310 § 8, part; 1911 c 74 § 20, part; Rem. Supp. 1949 § 7697, part.]
NOTES:
Effective dates—Severability—1971 ex.s. c 289: See RCW 51.98.060 and 51.98.070.