The short answer to the question if his security clearance is denied due to his mental health (and he doesn't improve), what actions can the military take against him?
Is that the military will have several options.
What you describe, it sounds like your son is experiencing mental health issues. One of the key questions will be "was this caused by his service or did it predate his service"
If this problem continues, and makes it so he can not perform his duties (and his not being able to obtain a clearance would effectively render him unable to perform his duties) I would expect the commander to order a MEB (Medical Evaluation Board).
The MEB is designed to answer two questions
1. Does the member have a physical or mental problem that limits their ability to perform their duties?
2. Is it expected that the problem will last one year or more.
IF the answer to both of the questions is yes, then a third question is presented
"is the problem caused by or aggravated by their military service"...the answer to this question would determine if the individual is separated with a military disability severance or simply separated.
What you describe, if your son is not able to obtain his clearance or maintain a clearance? I would expect the military to separate him. There is no good reason to keep him if he has mental health issues that limit his ability to serve.
SO the real issue will be
"how long will this last"
"what caused this"
If this is a temporary issue...if they expect him to clear up in the next year? It may be they place him in a different job that does not require a high level clearance
But in most cases, mental health issues that are diagnosed as mental health issues? They are not typically considered temporary.
So if your son has a mental health condition, most likely it will lead to separation
So the main issue, I expect, will be "was this caused by or aggravated by his service"
If there is evidence that his military service was the cause of this, or even that it aggravated a preexisting condition? I would expect a medical discharge
with a severance payment commensurate with the level of disability.
BotXXXXX XXXXXne: they will discharge
him if this condition prevents his service...but if this condition was caused by or aggravated by his service? He will be entitled to a medical discharge and compensation.
Please let me know if you have more questions. I am happy to help if I can. Otherwise, please rate the answer so I may get credit for my work.