What if instead of a gun-owner-registry, there were a national gun-registry?

[HockeyMom]

63. That depends on the state you live in

Is there a Federal definition (not for Minors) on who can and cannot have access to or own a gun when mentally impaired? Our adult daughter, who stills live in NY, voluntarily put herself in a hospital and was diagnosed BiPolar, which is on the spectrum of mental illness. She cannot own a gun in NYS.

However, in Florida where we live, since she VOLUNTARILY sought treatment, and was not involuntarily adjudicated with a mental illness, means she can have access to guns. Different States. Different Laws.

The reason this ever came up with us is that she wanted to join the NYPD. She is barred from doing this in NYS. However, in the state of Florida when she visits us, my husband could leave an open gun around, and take her shooting with him. Moot since non Felon, non Mentally Impaired me wants all guns locked in a safe anyway. For what it's worth, since I have worked in Public Schools and MR/DD institutions, my jobs required me to be fingerprinted, background checked, and are on file with the FBI anyway. They could very easily run a check on me.

The problem that I see is that there is a hodgepodge of laws across the states, especially on what is considered mentally impaired and barred from access to or owning guns.