California Code, Business and Professions Code - BPC § 22980.5

(a) A retailer whose license has been suspended or revoked by order of the board shall conspicuously post a notice at both of the following locations:

(b) The notices described in this section shall be in the size and form prescribed by the board. The notice shall be provided by the board and may be reproduced in the same size and form in order to comply with subdivision (a).

(c) A retailer whose license was suspended shall post the notice at the retail location that was the subject of the suspension for the duration of the suspension.

(d) A retailer whose license was revoked shall post the notice at the retail location that was the subject of the revocation for a 30-day period from the effective date of the revocation.

(e) Every retailer who fails to post the notices as required by this section, who alters the notice provided by the board, or who removes the notice before the posting period required in subdivision (c) or (d), as appropriate, expires, shall be subject, notwithstanding Section 22981, to a civil penalty of one thousand dollars ($1,000) for each offense.