From the RFQQ, p. 3:
The purpose of this RFQQ is to procure laboratory testing services for the Washington State Department of Agriculture (WSDA) Commodity Inspection Division’s Hemp Program... WSDA intends on contracting with analytical labs to provide post-decarboxylation Δ9- Tetrahydrocannabinol (THC), Δ9-Tetrahydrocannabinolic Acid (THC-A) percentage testing on industrial hemp samples provided by WSDA. The required method of testing is the High- Performance Liquid Chromatography (HPLC) for the determination of cannabinoids in industrial hemp samples. This method gives quantitative results for THC and THC-A.
Regarding the preproposal conference, from the WSDA's Hemp Program Update (Mar 30, 2020):
Vendor's[sic] who are interesting[sic] in submitting a proposal to become a state-approved hemp testing lab are strongly encouraged to attend our virtual preproposal meeting on Tuesday March 31, 2020 at 1:30PM local time (PST). Information on how to access the conference call can be located in the contract. To be included in the first round of evaluations, bid submissions are due April 10, 2020. This procurement is open to those who satisfy the minimum qualifications outlined in the RFQQ.