Big Dave said:
Good luck on that interpretation and if noticed will likely have a court date.
(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:
Note the bolded area, or areas of facilities this means such as a stadium or venues being held by a school, has nothing to do with school grounds as the will be off limits.
There is a provision to carry while dropping off or picking up a student but not outside of that.
The track and field parts of school property become open to the public after hours, thereby making carrying there legal. I remember this being brought up before with a cite, but I cannot seem to locate it now...
RCW 9.41.280(3) Subsection (1) of this section does not apply to:
(a) Any student or employee of a private military academy when on the property of the academy;
(b) Any person engaged in military, law enforcement, or school district security activities. However, a person who is not a commissioned law enforcement officer and who provides school security services under the direction of a school administrator may not possess a device listed in subsection (1)(f) of this section unless he or she has successfully completed training in the use of such devices that is equivalent to the training received by commissioned law enforcement officers;
(c) Any person who is involved in a convention, showing, demonstration, lecture, or firearms safety course authorized by school authorities in which the firearms of collectors or instructors are handled or displayed;
(d) Any person while the person is participating in a firearms or air gun competition approved by the school or school district;
(e) Any person in possession of a pistol who has been issued a license under RCW 9.41.070, or is exempt from the licensing requirement by RCW 9.41.060, while picking up or dropping off a student;
(f) Any nonstudent at least eighteen years of age legally in possession of a firearm or dangerous weapon that is secured within an attended vehicle or concealed from view within a locked unattended vehicle while conducting legitimate business at the school;
(g) Any nonstudent at least eighteen years of age who is in lawful possession of an unloaded firearm, secured in a vehicle while conducting legitimate business at the school; or
(h) Any law enforcement officer of the federal, state, or local government agency.
(4) Subsections (1)(c) and (d) of this section do not apply to any person who possesses nun-chu-ka sticks, throwing stars, or other dangerous weapons to be used in martial arts classes authorized to be conducted on the school premises.
(5) Subsection (1)(f)(i) of this section does not apply to any person who possesses a device listed in subsection (1)(f)(i) of this section, if the device is possessed and used solely for the purpose approved by a school for use in a school authorized event, lecture, or activity conducted on the school premises.
(6) Except as provided in subsection (3)(b), (c), (f), and (h) of this section, firearms are not permitted in a public or private school building.
(7) "GUN-FREE ZONE" signs shall be posted around school facilities giving warning of the prohibition of the possession of firearms on school grounds.
[2009 c 453 § 1; 1999 c 167 § 1; 1996 c 295 § 13; 1995 c 87 § 1; 1994 sp.s. c 7 § 427; 1993 c 347 § 1; 1989 c 219 § 1; 1982 1st ex.s. c 47 § 4.]
This RCW is pretty clear, as you see I have pasted the exceptions and no where in it does it indicate that carry upon school property after hours or while not in use.
If you can find your reference I would be happy to read it as well.