(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.