I think there is two different classifications, a licensed welding contractor and a certified welder can be two different things. I believe a licensed welder, licensed with the CSLB has to be certified, but a certified welded doesn't necessarily need a licensed. If he's going to the job-site I believe he needs a contractors license. I could be wrong, as I am most of the time.griz said:I think you mean a Certified Welder. Then certified as to what? Call the fabrication shops or the mobile welders and tell them what you need welded and see if they have the cert for it.