Wash. Rev. Code § 19.122.100
If charged with a violation of RCW 19.122.090, an equipment operator is deemed to have established an affirmative defense to such charges if:
[ 2025 c 292 s 10; 2011 c 263 s 16; 2005 c 448 s 6.]
Report—Effective date—2011 c 263: See notes following RCW 19.122.010.