Workplace Drug Testing Issues – Missouri State Laws
These categories do not affect DOT-regulated drug testing. Government employers should always call for potential additional restrictions on employee drug testing.
Instant or POCT Testing
Use lab testing for post-accident in order to use the intoxication defense. Confirm all non-negative results at the lab.
SAMHSA certified highly recommended to avoid exposure to liability.
Medical Review Officer
Highly recommended to use an MRO for all workplace drug tests.
Drug testing policies should limit post-incident testing to situations in which employee drug use cannot be ruled out as potentially contributing to the incident.
Workers Comp Discount
The law provides for a rebuttable presumption of intoxication and that the injury was proximately caused by that intoxication if certain conditions are met.
November 6, 2018 - With approximately 61% of voters supporting Amendment 2, Missourians with one of 9 qualifying conditions (those without a qualifying condition can gain approval from a doctor for a medical marijuana card) will have access to purchase and/or grow medical marijuana. Employers are likely to retain the majority of their rights around marijuana pertaining to drug testing and disciplinary action, and Amendment 2 included language that protects employers from adverse action by medical marijuana-using employees.
Report Driver DOT Positives
While Missouri does not have a drug testing statute, employers must meet certain drug testing requirements in order to challenge workers' and unemployment comp claims.
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