CA Bus & Prof Code Section 26155

(a)

The provisions of subdivision (g) of Section 26152 shall not apply to the placement of advertising signs inside a licensed premises and which are not visible by normal unaided vision from a public place, provided that such advertising signs do not advertise marijuana or marijuana products in a manner intended to encourage persons under the age of 21 years to consume marijuana or marijuana products.

(b)

This chapter does not apply to any noncommercial speech.