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 will conduct an interim check and will notify the owner/operator if the employee poses a security threat and cannot be granted unescorted access to secure areas. The TWIC credential is valid for five years, unless derogatory information is discovered during the five years and TSA revokes the credential.