I am a CWB Certified Level 2 Visual Weld Inspector. For more info refer to the latest CSA 178.2 standard (Certification of Welding Inspectors).
Also certification is based on a understanding of CSA W47.1 and CSA W59 the later equivalent to D1.1. The price is good compared to the American dollar. CSA is a not-for-profit organization, and has given CWB authorization to act as a certificatoin service. I believe, I once read CWB is nonprofit also. Income is generated from numorous sources like inspections, testing, and company certification fees, this is then reflected in the price if codes and certifications.
If you have any more questions feel free to email me.
G Austin hats of to you! Great software on your site, I use it daily.
Malcolm Hart