What are the requirements for the Air National Guard $20,000 Student Loan Repayment Program?

Asked by Mikey
I am about to join the Washington Air National Guard and wondering what the requirements are for the student loan repayment program. What type of loans are qualified for this program? When can I get a loan or does it have to be a loan that was previously received? What are the places that I should get the loan from that qualifies for this program? If you can provide me with some websites it would be greatly appreciated.