Recently, the City of Denver’s Department of Public Health and Environment (DDPHE) ordered, among other things, the destruction of Titan Health LLC’s (Titan Health) marijuana plants that it deemed to “hav[e] evidence of spider mite influx.” Titan Health appealed the DDPHE’s Notice of Violation (NOV), not only due to the lack of evidence warranting such an extreme remedy, but also because the NOV exceeded the City of Denver’s authority.[1] In fact, according to Titan Health, Colorado state law specifically preempted the NOV. While the merits of the appeal were not ultimately heard, this case exemplifies the importance of understanding state preemption and the limitations placed on localities’ authority.







