California judge rules against cannabis billboard ads on interstate highways Billboards for marijuana companies are commonplace in California, but that advertising option for cannabis businesses is about to shrink based… By hempcbdtimes , in california marijuana California Medical Cannabis Business & Marijuana Legal News Cannabis Industry & Marijuana Business Briefs marijuana advertising marijuana billboards Marijuana Dispensary & Cannabis Store News Marijuana Legalization and Regulatory News for Cannabis Businesses Recreational Marijuana News United States Cannabis Industry & Marijuana Business News , at November 24, 2020