InterNACHI Certified Professional Inspector (CPI)® Federal Certification Mark

To use the federally-issued Registered Certification Mark for CERTIFIED PROFESSIONAL INSPECTOR CPI®:
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Certified Professional Inspector CPI® is a United States federally-registered certification trademark. Only an InterNACHI member can say that he/she is a CPI®.  Visit to see the federal trademark. 
Members have unlimited access to all of InterNACHI's free, online training and Continuing Education. Learn at your own pace, and when you're ready, you can attain certification (at no additional charge). There are more than 45 additional certifications from which to choose.
Certified Professional Inspector (CPI)
After going through an approval process lasting more than four years, the United States Patent and Trademark Office (USPTO) has awarded InterNACHI a federally-issued Registered Certification Mark for CERTIFIED PROFESSIONAL INSPECTOR CPI®.
The application for the mark was first filed with the USPTO on October 26, 2005, published for opposition on January 15, 2008, and awarded to InterNACHI on November 24, 2009.
This mark is registered on the Principal Register at, Registration Number 3716985.
This description for proper use of the designation is from the USPTO website regarding Certified Professional Inspector CPI®:

"The certification mark, as used by persons authorized by the certifier, certifies that the inspections of residential and commercial buildings provided have been performed by an inspector who has met the online examination requirements as established by the certifier."

Non-member use:  Stop!  We mean it.
The International Association of Certified Home Inspectors -- InterNACHI -- is a Colorado non-profit, tax-exempt corporation and owns the federally-issued Registered Certification Mark for Certified Professional Inspector CPI®.  The USPTO registration number is 3716985. This is a certification mark used by inspectors who qualify for the designation. Those who have earned the designation often use the abbreviations "CPI" and "C.P.I.," and InterNACHI also claims common-law trademark rights on "CPI" and "C.P.I." within the inspection industry.

If it comes to our attention that you are using "Certified Professional Inspector," "CPI" or "C.P.I." in marketing yourself or your company, be alerted that your use of any of those trademarks is a direct infringement on InterNACHI's ownership, as it can cause confusion in the industry and dilutes InterNACHI's marks.

In that event, InterNACHI demands that you immediately cease and desist from all use of "Certified Professional Inspector," "CPI" or "C.P.I."  Please remove those references from your website and any printed materials. If you comply with this demand within ten days, InterNACHI will take no further action against you.
More InterNACHI logos, certification marks, trademarks and taglines
Free Certified Professional Inspector® decals
CPI mini-decals