Wash. Admin. Code § 16-144-146
Frozen dessert mixes must be transported in:
[Statutory Authority: RCW 15.30.120, 69.07.020, 69.10.055, and 16.49.025. WSR 20-17-020, § 16-144-146, filed 8/6/20, effective 9/6/20. Statutory Authority: RCW 15.36.021 and 69.04.398(3). WSR 95-16-062, § 16-144-146, filed 7/26/95, effective 8/26/95.]