(1) A fit for commerce certificate is a document issued by the department attesting that industrial hemp has been tested for THC concentration and is in compliance with this chapter.

(2) No industrial hemp may leave a registered land area identified on a license without a fit for commerce certificate.

(3) No processor may acquire or process industrial hemp grown within the state of Washington without acquiring a legible copy of all fit for commerce certificates issued by the department to the grower or growers with whom the processor conducts business and specific to the industrial hemp purchased.

(4) A person who is issued an applicable combination license must obtain fit for commerce certificates before any industrial hemp may be processed.

(5) For the purposes of this section, "processing" does not include drying industrial hemp if the drying takes place on the registered land area as identified in the license.

(6) Industrial hemp plants, pieces or parts from different fields or registered land areas may not be combined into one lot until a fit for commerce certificate for each field or registered land area is issued. Industrial hemp seeds and grain are excluded from this restriction.

(7) Processor licensees using industrial hemp which was obtained from outside of the state of Washington must maintain a bill of lading or other proper documentation demonstrating that the industrial hemp was legally imported into the state.