In California, the Contractors State License Board regulates the state’s construction industry. Their website lists the various licensing classifications, as well as allows consumers to verify whether a contractor possesses a valid California contractor license. I recently reviewed a bid that included a license number. Since the license number was much lower than that on another bid, I punched both into the CSLB website. After some research, it turns out that one of the license numbers was a city business license number, not a state contractor license number. Technically, it was a license number, but certainly not the type of license that I was expecting.