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Office of the Federal Register of the United States, National Archives and Records Administration. Federal Register Vol. 82, No. 13. https://www.govinfo.gov/content/pkg/FR-2017-01-23/pdf/FR-2017-01-23.pdf Accessed May 2, 2019.
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While individual practices may differ, this is the position of the American College of Medical Toxicology at the time written, after a review of the issue and pertinent literature.
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Connors, N., Kosnett, M.J., Kulig, K. et al. ACMT Position Statement: Interpretation of Urine for Tetrahydrocannabinol Metabolites. J. Med. Toxicol. (2020) doi:10.1007/s13181-019-00753-8
- Drug testing
- Urine tox screen