Wash. Rev. Code § 24.06.153
(1) A director shall discharge the duties of a director, including duties as a member of a committee, and an officer with discretionary authority shall discharge the officer's duties under that authority:
(2) In discharging the duties of a director or an officer, a director or officer is entitled to rely on information, opinions, reports, or statements, including financial statements and other financial data, if prepared or presented by:
[ 2001 c 271 s 9.]