Cannabis businesses can no longer advertise on billboards anywhere along a highway that crosses state borders, after a judge ruled in a favor of a central California dad who sued to block such ads.

The ruling won’t impact stretches of in-state freeways populated with marijuana billboards, such as the 55 in Orange County or the 215 in the Inland Empire.

But the Bureau of Cannabis Control said Thursday that billboard companies must immediately stop selling space to marijuana shops and start taking down existing ads near roadways that at any point cross state borders. This will mean no cannabis billboards near heavily used freeways such as Interstate 10 in the Inland Empire, the 5 freeway in Orange County, and Highway 101 in Los Angeles.

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