RCW 46.04.586THC concentration.'THC concentration' means nanograms of delta-9 tetrahydrocannabinol per milliliter of a person's whole blood. THC concentration does not include measurement of the metabolite THC-COOH, also known as carboxy-THC.[ 2013 c 3 s 3 (Initiative Measure No. 502, approved November 6, 2012).]NOTES:Intent—2013 c 3 (Initiative Measure No. 502): See note following RCW 69.50.101.
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