Washington Revised Code Title 15. Agriculture and Marketing § 15.36.511. Unlawful actions

(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.