622 P.2d 826 GREEN RIVER COMMUNITY COLLEGE, ET AL, Respondents, v. HIGHER EDUCATION PERSONNEL BOARD, ET AL, Petitioners. No. 46939-3.The Supreme Court of Washington. En Banc. December 31, 1980. [1] Administrative Law and Procedure — Administrative Rules — Validity — Burden of Proof. An administrative rule adopted pursuant to a legislative grant of authority is […]