Welcome to the coolest state ever! Anyways, I am not sure of any special Washington laws. You could check out www.packing.org - they have a state-by-state breakdown I think. The waiting period is 10 days without a concealed permit, or 0 days if you have one. I definitely recommend getting one, for many reasons. I don't know where you are located, but Wades in Bellevue is a good place to stop in. They have an indoor range with a pretty good assortment of pistols to rent and try out before buying. They are sometimes a little spendy to purchase though, so make sure you shop around. I also like Discount Gun Sales in Kirkland. They both have websites, but DGS's is the only one you can really shop on. Hope this helps.