Hospitals, schools, except one story, portable, frame school buildings, buildings designed or constructed as places of assembly accommodating more than three hundred persons; and all structures owned by the state, county, special districts, or any municipal corporation within the state of Washington shall hereafter be designed and constructed to resist probable earthquake intensities at the location thereof in accordance with RCW 70.86.030, unless other standards of design and construction for earthquake resistance are prescribed by enactments of the legislative authority of counties, special districts, and/or municipal corporations in which the structure is constructed.