California Code, Labor Code - LAB § 1178

If after investigation the commission finds that in any occupation, trade, or industry, the wages paid to employeesmay be inadequate to supply the cost of proper living, or that the hours or conditions of labormay be prejudicial to the health, morals, or welfare of employees, the commission shall select a wage board to consider any of such mattersand transmit to such wage board the information supporting its findings gathered in the investigation. Such investigation shall include at least one public hearing.