WA HB1513

Amends the Washington State Seashore Conservation Area boundaries to use "ordinary high water line" instead of "line of high tide" as the inland boundary marker

Adds a statutory definition of "ordinary high water line" based on the mark left by common water presence and action on soil or vegetation, with fallback standards for salt water (mean higher high tide) and fresh water (mean high water)

Requires all beach areas near salmon-bearing streams to be reserved for pedestrian use only during spawning season, prohibiting motorized vehicles in these zones

Directs the Parks and Recreation Commission to consult with the Department of Fish and Wildlife to identify salmon-bearing streams and determine spawning timing

Retains existing requirement that 40% of beach length be reserved for pedestrian use from April 15th through the day after Labor Day, while allowing local jurisdictions to adopt stricter provisions