Same reason folks with a Tennessee HCP get non-resident permits from any other state that issues them (FL, UT, VA, NH, PA, ME, etc.)...........
redundancy, "insurance" while travelling, to add to "our" numbers for political/lobbying purposes, or "just 'cause I want it"
As far as I can tell, your TN HCP is accepted in about as many states as any other credential. However, some folks still like the security or the warm fuzzies of having another card or two in their back pocket.
I have the PA and NH non-resident permits....doesn't get me any more states, but they didn't cost much and I just like having them.
In the interest of full disclosure, we offer the ND test. Maybe the OP was referring to us ? And (more disclosure) it's not our top seller.
BUT, if you decide you want one...you know where we are.
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