How to Become a Licensed Home Inspector in Maryland

InterNACHI® is the world's leading association for home inspectors.  We provide free training, online testing and certification, business development, marketing support, and discounts on everything from home inspection software to E&O insurance to your next truck and more. 

InterNACHI® School is the only home inspector college accredited by 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 Maryland.  

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

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Home Inspector Pre-Licensing:

To become a licensed home inspector in Maryland, an individual must:

  • complete a 72-hour on-site home inspector training course that is approved by the Commission; and
  • provide an examination score report verifying successful completion of the National Home Inspector Examination.

For details about Maryland licensing for home inspectors, visit the Maryland website.

We have training partners that provide the on-site classes at

To Help Prepare for the State Exam

To help prepare for the state exam, you may take advantage of several resources InterNACHI® provides, including InterNACHI's Online Inspector Exam (free and open to everyone), the InterNACHI® Ultimate Home Inspection Practice Test (free for members), and InterNACHI's online courses (free for members). We do not know what's on the state exam, but the preparation resources may be helpful to you. You may want to formally request that the state recognize a valid alternative proctored exam like InterNACHI's Inspector Exam.



Insurance for Inspectors

To be a licensed home inspector in Maryland, individuals must meet certain requirements for adequate insurance coverage. InterNACHI members are eligible for discounts and enhanced coverage. Visit for information on how to sign up.



Inspector Continuing Education (online & free for members)

Maryland Home Inspector Commission approves InterNACHI as a Continuing Education Provider. Visit the Maryland website for approved free, online courses. Click the link below to take MD-approved free, online courses for Maryland Continuing Professional Competency Education:


Hands-On Training at House of Horrors® 

Experience world-class inspection training and InterNACHI® member events at our House of Horrors® locations in Colorado and Florida.  The InterNACHI® House of Horrors® is an entire house with 1,000 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®. 

Experience the House of Horrors®

Inspector Chapter

Look for a home inspector Chapter in your area



InterNACHI® provides peer-to-peer learning experiences for both inspectors who need additional assistance and for experienced inspectors who are interested in helping newer ones out. Choose InterNACHI Mentoring to get started.


Radon Tester Certification (online & free for members):


Although Maryland does not have state regulations for radon testing, the state recommends that the public follow the Environmental Protection Agency (EPA) guidelines for testing. Visit the Maryland Department of Health 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.

Mold Inspections

The Maryland Department of the Environment does not have a program to evaluate mold concerns or provide assistance for addressing mold-related problems. To become an InterNACHI® Certified Mold Inspector, visit

Wood-Destroying Organisms (online and free for members):


Maryland Department of Agriculture approves InterNACHI's Wood-Destroying Organism Inspection Course for Continuing Education to satisfy the certification training requirements for licensed pesticide applicators.


Commercial Property Inspections

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

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


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Home Energy Inspector Certification (online & free for members):


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. Visit




Business & Marketing (online & free for members): 


InterNACHI's 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. It's all for free. Take a look at the free design work we've done for our members (free to members). Contact the Inspector Marketing Department today

Everything You Need, All in One Place:

InterNACHI provides everything you need to be successful. Visit


Membership Benefits (free for members):

InterNACHI provides over $75,000 worth of benefits to its members at no cost. Visit


Archived Approval Letters:



  • Infrared Thermography. 16 hours.
  • How to Perform Roof Inspections. 4 hours.
  • How to Inspect Tile Roofs. 2 hours.
  • 10 Steps to Performing a Roof Inspection. 2 hours.
  • How to Inspect for Moisture Intrusion. 8 hours.

  • Inspecting the Means of Egress Course. 4 hours. 
  • Log Home Inspection Course. 6 hours.
  • Wood-Destroying Organism Inspection Course. 6 hours.
  • 25 Standards Every Inspector Should Know Course. 5 hours.
  • How to Inspect the Exterior Course. 16 hours.
  • How to Perform Deck Inspections Course. 3 hours.
  • Structural Issues for Home Inspectors. 4 hours.
  • How to Perform Residential Electrical Inspections. 4 hours.
  • Inspecting HVAC Systems Course. 12 hours.
  • How to Perform Roof Inspections Course. 4 hours.
  • 10 Steps to Performing a Roof Inspection Course. 2 hours.
  • Residential Plumbing Overview Course. 8 hours.
  • How to Inspect the Attic, Insulation, Ventilation and Interior Course. 14 hours.
  • How to Inspect for Moisture Intrusion Course. 8 hours.
  • Safe Practices for Home Inspectors Course. 4 hours.
  • Expiration July 1, 2017.

How to Inspect the Exterior (16 hours)