All Roll Calls
Yes: 240 • No: 0
WashingtonHB 25322025-2026 Regular SessionHouse
Concerning the sale and distribution of nitrous oxide.
Sponsored By: Joe Timmons (Democratic)
Signed by Governor
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Bill Overview
Analyzed Economic Effects
1 provisions identified: 0 benefits, 1 costs, 0 mixed.
New limits on Washington nitrous oxide sales
Beginning June 11, 2026, Washington bans selling, supplying, administering, distributing, or giving away covered nitrous oxide containers. Offering to do these things is also banned. Covered devices, canisters, tanks, and other containers hold only nitrous oxide, flavored nitrous oxide, or a chemical compound mixed with nitrous oxide. Violations are gross misdemeanors. Exceptions cover medical, veterinary, or dental care by or under the direction or supervision of a Washington-licensed practitioner. Other exceptions cover sales of food products containing nitrous oxide as a propellant, manufacturers’ sales and use for manufacturing or industrial operations, and automotive sales and use. Cylinder filling is exempt for lawful distributors of medical, veterinary, dental, food-grade, industrial, or automotive gases. Those cylinders must be solely for exempt purposes and not for personal use.
Sponsors & Cosponsors
Sponsor
Joe Timmons
Democratic • House
Cosponsors
Alex Ramel
Democratic • House
Dan Griffey
Republican • House
Edwin Obras
Democratic • House
Greg Nance
Democratic • House
Julio Cortes
Democratic • House
Lauren Davis
Democratic • House
Lisa Parshley
Democratic • House
Mari Leavitt
Democratic • House
Mary Fosse
Democratic • House
Steve Bergquist
Democratic • House
Roll Call Votes
House vote • 3/11/2026
Final Passage as Amended by the Senate
Yes: 96 • No: 0 • Other: 2
Senate vote • 2/28/2026
3rd Reading & Final Passage as Amended by the Senate
Yes: 49 • No: 0
House vote • 2/11/2026
3rd Reading & Final Passage
Yes: 95 • No: 0 • Other: 3
Actions Timeline
Effective date 6/11/2026.
3/24/2026HouseChapter 188, 2026 Laws.
3/24/2026HouseGovernor signed.
3/24/2026legislaturePresident signed.
3/12/2026legislatureDelivered to Governor.
3/12/2026legislatureSpeaker signed.
3/12/2026legislaturePassed final passage; yeas, 96; nays, 0; absent, 0; excused, 2.
3/11/2026HouseHouse concurred in Senate amendments.
3/11/2026HouseThird reading, passed; yeas, 49; nays, 0; absent, 0; excused, 0.
2/28/2026HouseRules suspended. Placed on Third Reading.
2/28/2026HouseCommittee amendment(s) adopted with no other amendments.
2/28/2026HousePlaced on second reading consent calendar.
2/27/2026HousePassed to Rules Committee for second reading.
2/24/2026HouseLAW - Majority; do pass with amendment(s).
2/23/2026HouseFirst reading, referred to Law & Justice.
2/13/2026HouseThird reading, passed; yeas, 95; nays, 0; absent, 0; excused, 3.
2/11/2026HouseRules suspended. Placed on Third Reading.
2/11/2026HouseFloor amendment(s) adopted.
2/11/2026House1st substitute bill substituted.
2/11/2026HouseRules Committee relieved of further consideration. Placed on second reading.
2/10/2026HouseReferred to Rules 2 Review.
2/4/2026HouseCS - Executive action taken by committee.
2/2/2026HouseCS - Majority; 1st substitute bill be substituted, do pass.
2/2/2026HouseFirst reading, referred to Community Safety.
1/16/2026HouseIntroduced
1/16/2026House
Bill Text
Session Law
3/31/2026
Bill as Passed Legislature
3/12/2026
Engrossed Substitute
2/11/2026
Substitute Bill
2/4/2026
Original Bill
1/16/2026
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