http://federalfirearmlaws.com/gun-permit/gun-permit-by-state/
12 states require a permit or license to purchase handguns
Looks like Washington, DC, Guam, Puerto Rico, Virgin Islands, American Samo and Massachussetts are the only states/territories that require a permit to posess a handgun. Nice to see what company MA holds itself in.
Michigan requires a license, which is valid for 10 days, for every purchase of a handgun, unless the purchaser holds a license to carry a concealed handgun. - At least they don't NEED an LTC to purchase a handgun, but wow - only valid for 10 days??