RCW 9.41.280
Possessing dangerous weapons on school facilities — Penalty — Exceptions.
*** CHANGE IN 2014 *** (SEE 6312-S2.SL) ***
(1) It is unlawful for a person to carry onto, or to possess on, public or private elementary or secondary school premises, school-provided transportation, or areas of facilities
while being used exclusively by public or private schools:
http://apps.leg.wa.gov/RCW/default.aspx?cite=9.41.280
I have been corrected by others on this board about the interpretation of .280. You're selecting only half of the statement.
(1) It is unlawful for a person to carry onto, or to possess on, public or private elementary or secondary school premises, school-provided transportation, or areas of facilities while being used exclusively by public or private schools:
If Safeco is rented out by the Washington scholastic athletics association (or whatever it's called) for the State High School Baseball Championships, guns would be unlawful to carry there. Graduations at Comcast Center. High School football games at city stadiums. The argument would be made that the school was the exclusive occupant at those times. A field trip to the Ballard Locks or Seattle Aquarium, for example, does not fit the "used exclusively" standard, as the general public can still access the building.
Also, the law is unambiguous. No carry on school premises- regardless of activities, if school is in session or not (which is uber-retarded). Other than the specifically exempted pick-up/drop-off of student, or proceeding to hunting ground exclusions, etc., carry is not allowed. I think the only other exemption is to have the gun, unloaded, in an opaque container.
"Areas of facilities" is not school premises. Otherwise it'd say "Areas of school facilities" and be redundant to the first part.