Licensing of home inspectors only sets a minimum standard. Much like being up to code, any less would be illegal. Imaginary people, children, psychics (who claim to "sense" if a house is OK) and even pets can be home inspectors. Other home inspection associations have no entrance requirements and worse, encourage their candidates to go out and perform actual inspections for poor, unsuspecting consumers as the only way to achieve full membership. NACHI finds this practice unconscionable. That is why NACHI front-ends its membership requirements. We turn down more than 1/2 the inspectors who want to join because they can't pass our exam or fulfill our membership requirements.
Have to pass NACHI's Online Inspector Examination every year with a score of 80 or better. (This general, not association-specific exam is open and free to all).
So the next time you need to refer your clients to home inspectors, make sure they are members of NACHI and never use a candidate or associate of any association. NACHI, America's elite home inspection association.