WAC 16-252-140
Use of artificial coloring. (1)
Artificial coloring may be used in pet food if it is harmless
to animals.
(2) Any pet food or specialty pet food ingredient or pet
food or specialty pet food product must not contain materials
that enhance the natural color of a food if it conceals
inferiorities.
[Statutory Authority: Chapters 15.53 and 34.05 RCW. 03-23-129, § 16-252-140, filed 11/19/03, effective 7/1/04.]