The bill from last year was activated this term and has already passed on a floor vote of the house. Legislative summary here --> HB 1645 - 2015-16
And the amended bill here --> http://lawfilesext.leg.wa.gov/biennium/2015-16/Pdf/Amendments/House/1645-S2 AMH CODY H4425.1.pdf
Bans all internet sales, including "concentrated nicotine", meaning higher than 10mg/mL. So that addresses DIY. No taxes specified in this, but I imagine that's step two.
And the amended bill here --> http://lawfilesext.leg.wa.gov/biennium/2015-16/Pdf/Amendments/House/1645-S2 AMH CODY H4425.1.pdf
Bans all internet sales, including "concentrated nicotine", meaning higher than 10mg/mL. So that addresses DIY. No taxes specified in this, but I imagine that's step two.