After a judge ruled that cannabis billboards are illegal on California roads that cross state borders, the Bureau of Cannabis Control (BCC) has issued a notice announcing new rules for the advertisements.

Under the new regulations, cannabis companies cannot place new billboard ads on any interstate highway that crosses the California border, and businesses must remove any current billboards placed along these roads.

The new policy affects about three dozen state and interstate routes, according to an ABC 10 report, but cannabis billboards are allowed to remain on highways that are entirely within California’s borders.