If InterNACHI has provided you with a free logo design, take advantage of the opportunity and implement it on all of your marketing.
Check out all of the logos that have been created for members here: http://www.nachi.org/inspector-logos.htm
and scroll through the constantly growing InterNACHI Marketing Library here: http://www.nachi.org/marketing-library.htm
These services are free for all InterNACHI members. Email me at firstname.lastname@example.org to get started.