Lab. Code, § 1183

(a) So far as practicable, the commission, by mail, shall send a copy of the order authorized by Section 1182 to each employer in the occupation or industry in question, and each employer shall post a copy of the order in the building in which employees affected by the order are employed. The commission shall also send a copy of the order to each employer registering his or her name with the commission for that purpose, but failure to mail the order or notice of the order to any employer affected by the order shall not relieve the employer from the duty of complying with the order.

(b) The commission shall prepare a summary of the regulations contained in its orders. The summary shall be printed on the first page of the document containing the full text of the order. The summary shall include a brief description of the following subjects of the orders: minimum wage, hours and days of work, reporting time, pay records, cash shortages and breakage, uniforms and equipment, meals and lodging, meal and rest periods, and seats. The summary shall also include information as to how to contact the field office of the Division of Labor Standards Enforcement, how to obtain a copy of the full text of the order and the statement as to the basis for the order, and any other information the commission deems necessary. The commission, at its discretion, may prepare a separate summary for each order or any combination of orders, or it may incorporate the regulations of all its orders into a single summary.

(c) A finding by the commission that there has been publication of any action taken by the commission as required by Section 1182.1 is conclusive as to the obligation of an employer to comply with the order.

(d) Every employer who is subject to an order of the commission shall post a copy of the order and keep it posted in a conspicuous location frequented by employees during the hours of the workday.