Published on Petroleum Equipment Institute (https://testing.pei.org)

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Workplace Drug Testing  [1]

Reasonable suspicion? Probable cause? Who can test whom? This chart shows the laws by state.    Click for ACLU chart regulation, and many states have enacted provisions imposing drug-testing restrictions of various kinds.Since there is no comprehensive federal drug-testing law, this leaves the field open to state regulation, and many states have enacted provisions imposing drug-testing restrictions of various kinds.
Source URL (retrieved on 05/09/2025): https://testing.pei.org/tags/marijuana-testing

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[1] https://testing.pei.org/business/workplace-drug-testing%C2%A0