The Home Inspection profession is young, growing and changing constantly. This awareness is important if your inspector is to be able to keep up with things and do a good job for you. If the inspector doesn't care enough to have a national affiliation, you might make a mistake using the inspectors services. If your state regulates Home Inspectors , be sure to check that the Inspector complies with the regulation. The regulatory agency should be able to tell you if the Inspector is licensed or registered or whatever.
Many inspectors hold licenses for other services which they offer.