Chronic health problems such as cardiovascular disease, diabetes, obesity, cancer and kidney disease account for more than 75% of the nation's $2.7 trillion in annual spending for medical care, says Ursula Bauer of the Centers for Disease Control and Prevention.
He might need to have one while waiting for a TS clearance to go thru. They take from 1-4 months for the interim, the TS clearance could take from 1 month to 2 years from what I have seen. I had to wait 2 years for the final one to go thru. As I said I have also seen people get them really fast too.
TSA may submit a request for the FBI to conduct an alternate verification process. This alternate process may require an additional two to four weeks of processing time. If you applied for Global Entry, NEXUS, or SENTRI, you may submit an email, call (855) 873-4637, or visit the online information center.