National Association of Certified Home Inspectors, while relatively newer, is the largest and most progressive association in the country today. It was formed in 1990 and provides continuing education and training throughout the country to all its members every day!. Entrance requirements to be a certified member with NACHI include a psychometric validated online examination, completion of several mandatory core subject courses and report review confirmation that the inspector has completed 100 inspections in substantial compliance with NACHI's Standards of Practice. NACHI also has an entry level working member program whereby inspectors must have completed 4 mock inspections for review purposes by NACHI peers before the new inspector can undertake/complete his first fee-paid inspection.