PDFWAC 246-203-200
Disease producing organisms for rodent extermination forbidden.
The use of any disease-producing organisms such as the so-called "rat viruses" or any bacteria for the purpose of rodent extermination is prohibited.
[Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as ยง 246-203-200, filed 12/27/90, effective 1/31/91; Regulation .50.200, effective 3/11/60.]