CA SB31

Increases the minimum arena capacity requirement for advertising display exemptions from 5,000 to 15,000 seats and expands the definition of arena premises to include contiguous development projects or districts extending up to 1,000 feet from the venue.

Authorizes up to 2 additional advertising displays per arena that are visible from approaching interstate, primary, or state highway offramps and must be authorized by local ordinance adopted by January 1, 2019.

Permits advertising displays to promote any products, goods, or services sold on arena premises or marketed through sponsorship agreements, except tobacco, firearms, and sexually explicit material.

Requires local agencies to adopt ordinances regulating arena advertising displays with specific minimum requirements including sign number, area, separation, illumination, and operating hours; imposes $10,000 per day civil fine for non-compliance after federal highway funding notices.

Makes local governments responsible for enforcing compliance and indemnifying the state Department of Transportation for enforcement costs; protects existing compliant displays erected before December 31, 2013.