How to Become a Certified Home Inspector in Arizona

InterNACHI is the world's leading association for home inspectors.  We provide free training, online testing and certification, business development, marketing support, discounts on everything from home inspection software to E&O insurance to your next truck, and more.
InterNACHI School is accredited as a postsecondary institution by ACCET, a national accrediting agency of the U.S. Department of Education, to provide tuition-free online training, examination, certification, and continuing education to InterNACHI® members in Arizona. 

Scroll down this page for everything you need to get started, make more money, and grow your inspection business.


The Arizona State Board of Technical Registration (AZBTR) requires applicants for home inspector certification to (a) complete 87 hours of training, (b) pass a national home inspector exam, and (c) complete 30 parallel inspections with a certified home inspector.  Visit the AZBTR website for details.
(a). According to R4-30-247 of the Arizona Administrative Code (page 8), an applicant must show evidence of successful completion of 84 hours of classroom training or an equivalent course conducted by an educational facility accredited by an accrediting agency approved by the U.S. Department of Education.  InterNACHI® School is accredited by ACCET, an accrediting agency approved by the U.S. Department of Education. The Arizona State Board of Technical Registration requires that students submit a transcript to the AZBTR for determination of approval. Students must request this transcript from the Education Department
(b). To help practice or prepare for the state exam, you may take InterNACHI's Online Home Inspector Exam (free and open to everyone), take the InterNACHI® Ultimate Home Inspection Practice Test (free and online for members), and take InterNACHI's accredited online courses (free and online for members). 
(c). Contact an InterNACHI Mentor who is an AZ-certified home inspector or search for an AZ-certified home inspector

87-Hour Home Inspector Certification Course (free & online)

InterNACHI® offers an 87-Hour Inspector Certification Course, which is free and online for members.  
Take the free, online Home Inspector Certification Course to become a certified home inspector in Arizona.

Home Inspector Continuing Education (free & online)

Arizona does not pre-approve continuing education.
InterNACHI's online courses are available to members for free. Not a member? Join now
After joining as a member, you'll have access to everything you need to be successful, including all of InterNACHI's online training, certifications, Continuing Education, marketing, and business services. InterNACHI® has everything you need, all in one place.

Home Inspector School Partners and Parallel Inspections

For a list of local partner schools who provide home inspector training classes and parallel inspection trainings, please click here.


Insurance for Home Inspectors

To be a certified home inspector in Arizona, individuals must meet certain requirements for adequate insurance coverage.  InterNACHI® members are eligible for exclusive discounts and enhanced coverage.  Visit for a quick quote and additional information.  

Hands-On Training at the House of Horrors® 

Experience world-class inspection training and InterNACHI® member events at the InterNACHI®  House of Horrors® in Colorado and Florida.  The House of Horrors® is an entire house with a thousand defects built under our roof.  Register for a free event, take training, test-drive inspection tools, attend an inspector chapter meeting, and inspect the House of Horrors®. 


How to Join InterNACHI



Radon Tester Certification in Arizona (online & free)


 The Arizona Radiation Regulatory Agency (ARRA) does not regulate or certify radon testers or mitigation specialists; however, they do recommend hiring a Certified Radon Tester who has completed a radon measurement training certification course approved by AARST-NRPP,  NRSB, or WRRTC.  Visit the Arizona website for details
InterNACHI's free, online Radon Measurement Professional Initial Training Course  is AARST-NRPP-approved for both initial certification and Continuing Education. To complete all components of the NRPP Radon Certification, please visit their site for more information.  
InterNACHI's free, online Radon Measurement Professional Initial Training Course is NRSB-approved for initial certification. For those looking for NRSB continuing education, members should take the free, online "Advanced Radon Measurement Service Provider" course.

Wood Destroying Organism Inspection (free & online)

The Arizona Department of Agriculture that pest inspections be completed using their WIIR form. Inspectors filling out this form must be licensed with the Arizona Department of Agriculture. Visit the state website for more information.

Commercial Property Inspections

Become a InterNACHI® Certified Commercial Property Inspector. The online training and certification is free for members.

Visit Certified Commercial Property Inspectors Association (CCPIA) for additional commercial inspection training and resources.

Home Energy Inspector Certification (free & online)

Become a Certified Home Energy Inspector. The online training and certification is free for members. No infrared, no blower door, and no additional training needed.

Business & Marketing (online & free)


InterNACHI's Member Marketing Team will design a new logo for your inspection business or re-design your existing logo, and design and customize your business cards, flyers and brochures. The design work is free. Take a look at the free design work we've done for our members.  We recommend contacting the Member Marketing Team


Everything You Need, All in One Place:

Follow the step-by-step checklist for running a successful home inspection business.


Other Resources

AZ Home Inspector application packet states that training programs must be offered at facilities licensed by the AZ State Board for Private Postsecondary Education or have an accreditation recognized by the United States Department of Education or by the Distance Education Accrediting Commission (DEAC)).