I know that in NJ you have to consent to a full medical background check in order to get your firearm purchasers card, initial card takes @ 3-6 months. Everytime I want to buy another handgun I have to apply for a handgun permit, application time @ 3weeks to 3 months. But to buy a long gun, as NJ refers to them, you do not have to update you mental state or purchasers card.
I personally do not have a probelem with this. Being I know that I am of sound mind and body, as far as they know.
I could see how alot of people would have a problem with this though. It is change for many. In NJ this has been standard practice for many, many years. I got my first purchasers card at 18y/o, I am now 34y/o. Everytime I move I have to apply for a new card within the municipality, which means full medical and police background checks. But it is what I have grown up doing.