WAC 352-37-230
WAC 352-37-230. Firearms
(1) No person shall discharge or propel across, in, or into the seashore conservation area a firearm, except where the commission for good cause has authorized a special recreational activity upon finding that it is not inconsistent with state park use. Any violation of this section is a gross misdemeanor.
(2) The possession, display, carrying, discharge or use of a firearm is further regulated under chapter 9.41 RCW.