Wash. Rev. Code § 70.100.020
Every person shall wear eye protection devices when participating in, observing, or performing any function in connection with any courses or activities taking place in eye protection areas of any private or public school, college, university, or other public or private educational institution in this state, as designated by the superintendent of public instruction. The governing board or authority of any public school shall furnish the eye protection devices prescribed in RCW 70.100.030 without cost to all teachers and students in grades K-12 engaged in activities potentially dangerous to the human eye, and the governing body of each institution of higher education and vocational technical institute shall furnish such eye protection devices free or at cost to all teachers and students similarly engaged at the institutions of higher education and vocational technical institutes. Eye protection devices shall be furnished on a loan basis to all visitors observing activities hazardous to the eye.
RCW 70.100.020