WA SB5236

Department of Ecology must commission a study by July 1, 2026 to identify sources, usage patterns, and emission quantities of high global warming potential anesthetic gases in Washington, and recommend regulatory approaches

Department of Ecology must submit legislative recommendations by January 1, 2027, in consultation with Department of Health, on statutory changes needed to reduce anesthetic gas emissions, including potential prohibitions on specific gases

Department of Ecology must publish guidance by April 1, 2027 for reducing greenhouse gas emissions from anesthetic gases (sevoflurane, desflurane, isoflurane, halothane, nitrous oxide) used in medical, dental, and veterinary settings

By January 1, 2028, facilities and practitioners using anesthetic gases must use anesthesia consistent with the guidance document, though no penalties may be issued for non-compliance

Medical professionals retain flexibility to use unrestricted anesthetic gases when needed for patient safety and comfort, and guidance cannot require care that increases liability or procedure risks