https://terp517.com/ Michigan cannabis science, terpene education, lab testing, cultivation and regulation from Lansing and the 517. en-us Tue, 13 Oct 2026 08:00:00 -0400 https://terp517.com/theterpreport/cannabis-and-driving-impairment/ https://terp517.com/theterpreport/cannabis-and-driving-impairment/ Tue, 13 Oct 2026 08:00:00 -0400 Marcus Hale Lab Testing A THC test can show exposure. Michigan’s own commission found it can’t show impairment, and that gap matters every time someone grabs the keys.