How long is a nonprofessional permit to carry weapons in Iowa valid before it needs to be renewed?

A nonprofessional permit to carry weapons in Iowa is valid for 5 years before it needs to be renewed. This is the longest validity period out of the given options. Option B is too short and option C is even shorter, making both of them incorrect. Option D is the closest in terms of validity, but it is still longer than the actual validity period of a nonprofessional permit in Iowa. Therefore, option A is the best and correct answer.