RCW 15.36.511: Unlawful actions.

(1) It is unlawful for any person to:

(a) Interfere with or obstruct any person in the performance of official duties under this chapter;

(b) Employ a tester, sampler, weigher, grader, or pasteurizer who is not licensed as a dairy technician;

(c) Alter or tamper with a seal placed by the director;

(d) Alter or tamper with a sample of milk or milk products taken or sealed by the director; or

(e) Operate as a milk producer or milk processing plant without obtaining a license from the director.

(2) Except as provided under RCW 15.36.131, it is unlawful for a milk processing plant to accept milk from a person not licensed as a producer or milk processor.