No. Marijuana, including a mixture or preparation containing marijuana, continues to be classified as a Schedule I controlled substance by the Drug Enforcement Administration (DEA) in 21 CFR § 1308.11. Under the Federal Motor Carrier Safety Regulations (FMCSRs), a person is not physically qualified to drive a CMV if he or she uses any Schedule I controlled substance such as marijuana. (See 49 CFR §§ 391.11(b)(4) and 391.41(b)(12)). Accordingly, a driver may not use marijuana even if is recommended by a licensed medical practitioner.