The following House Bill 3177 passed unanimously in the Oregon House and moves on to the Senate. I don't know if anything similar is pending in Washington. The key language is in item 5:
(5) A retail dealer, nonretail dealer or wholesale dealer may sell or offer for sale gasoline that
is not blended with ethanol if the gasoline has an octane rating, as defined in ORS 646.945, of
92 or above or if the gasoline is for use in:
(a) An aircraft:
(b) An aircraft that has been issued an experimental certificate, described in 14 C.F.R. 21.191,
by the Federal Aviation Administration and that is required by the manufacturer?s specifications to
use gasoline that is intended for use in motor vehicles;
(c) A light-sport aircraft, as defined in 14 C.F.R. 1.1, that is required by the manufacturer?s
specifications to use gasoline that is intended for use in motor vehicles;
(d) A vintage aircraft, as defined by the Oregon Department of Aviation by rule, that is required
by the manufacturer?s specifications to use gasoline that is intended for use in motor vehicles;
(e) An antique vehicle, as defined in ORS 801.125;
(f) A Class I all-terrain vehicle, as defined in ORS 801.190;
(g) A Class III all-terrain vehicle, as defined in ORS 801.194;
(h) A racing activity vehicle, as defined in ORS 801.404;
(i) A snowmobile, as defined in ORS 801.490;
(j) Tools, including but not limited to lawn mowers, leaf blowers and chain saws; or
(k) A watercraft.
(5) A retail dealer, nonretail dealer or wholesale dealer may sell or offer for sale gasoline that
is not blended with ethanol if the gasoline has an octane rating, as defined in ORS 646.945, of
92 or above or if the gasoline is for use in:
(a) An aircraft:
(b) An aircraft that has been issued an experimental certificate, described in 14 C.F.R. 21.191,
by the Federal Aviation Administration and that is required by the manufacturer?s specifications to
use gasoline that is intended for use in motor vehicles;
(c) A light-sport aircraft, as defined in 14 C.F.R. 1.1, that is required by the manufacturer?s
specifications to use gasoline that is intended for use in motor vehicles;
(d) A vintage aircraft, as defined by the Oregon Department of Aviation by rule, that is required
by the manufacturer?s specifications to use gasoline that is intended for use in motor vehicles;
(e) An antique vehicle, as defined in ORS 801.125;
(f) A Class I all-terrain vehicle, as defined in ORS 801.190;
(g) A Class III all-terrain vehicle, as defined in ORS 801.194;
(h) A racing activity vehicle, as defined in ORS 801.404;
(i) A snowmobile, as defined in ORS 801.490;
(j) Tools, including but not limited to lawn mowers, leaf blowers and chain saws; or
(k) A watercraft.