The bill addresses concerns regarding the use of anticoagulant rodenticides and those containing bromethalin, highlighting their potential negative impacts on human and wildlife health. It establishes a moratorium on the use of these rodenticides, directing a study to assess their known and potential impacts in Washington. The bill mandates that by December 31, 2026, the Department of Agriculture must report on all registered anticoagulant rodenticides and those containing bromethalin. Furthermore, from January 1, 2027, to December 31, 2028, the use of these rodenticides will be prohibited, with provisions for emergency use under specific circumstances.

Additionally, the bill requires the Washington State Academy of Sciences to conduct a comprehensive study on rodenticide use and safety, focusing on the impacts on local wildlife, gaps in existing research, and the viability of alternative rodent control methods. The findings of this study must be submitted to the legislature by December 31, 2028. Both the reporting and study provisions are set to expire on June 30, 2029.