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WVDA Hemp Laboratory
Lab 1

Cultivation of hemp for commercial purposes was expanded in 2017 by the West Virginia Legislature’s Industrial Hemp Development Act, Code §19-12-E. The West Virginia Department of Agriculture licenses growers and performs testing of industrial hemp during its growing period to determine the THC, or tetrahydrocannabinol levels. THC is a naturally-occurring cannabinoid in Cannabis sativa L. that is of interest for its pharmacological and toxicological characteristics.

Lab 2

Using highly sensitive equipment, our chemists analyze hemp for the quantitation of Δ9-THC post-decarboxylation, or Total THC for federal regulatory compliance and consumer safety

Lab 3
Lab 4
Lab 5

WVDA inspectors collect official samples in the field while maintaining a proper chain of custody. In preparation for sample analysis, the plant is dried to a constant weight and ground. Samples are placed in frozen storage until they are analyzed for Δ9-THC post-decarboxylation. Ultra-high-performance liquid chromatography (UHPLC) is used to chromatographically separate and quantitate the THC and THC-A.

Δ9-THC post-decarboxylation is calculated using the percentages of delta-9-tetrahydrocannabinol (THC) and delta-9-tetrahydrocannabinolic acid (THC-A), then calculating the loss of CO2 in THC-A.
%Total Δ9-THC = % Δ9-THC + (%Δ9-THCA × 0.877)

Results are used to confirm the total THC concentration on a dry weight basis. Samples that have results above 0.3 total THC are retested in duplicate to confirm results.

Lab 6

Quality control practices are critical to produce sound results. The WVDA Hemp Laboratory uses ISO 17025 standards to produce precise, accurate testing and calibration data.

Lab 7

USDA Interim Final Rule on Domestic Hemp Production

https://www.ams.usda.gov/sites/default/files/media/AMS_SC_19_0042_IR.pdf


WVDA Proposed Legislative Rules Regarding Hemp and Hemp Products

Please visit the link to currently proposed legislative rule on Hemp products.

http://apps.sos.wv.gov/adlaw/csr/readfile.aspx?DocId=51289&Format=PDF


Please visit the link to the current proposed changes to the legislative rule on Hemp.

http://apps.sos.wv.gov/adlaw/csr/readfile.aspx?DocId=51288&Format=PDF