Denver hasn't adopted a new state law allowing marijuana industry billboards in Colorado, but that could change soon.
State laws implemented in January let marijuana companies advertise outdoors using billboards, but as with many new pot freedoms, local jurisdictions have to opt in first. And so far, Denver hasn't.
Colorado’s current marijuana advertising laws, created by the State Licensing Authority, follow voluntary advertising restrictions similar to those used by the alcohol industry to prevent the sale or diversion of marijuana to minors. However, the plant's federal status led to a more restrictive advertising landscape for pot than for alcohol.