Can you explain IBR and the 15% cut off?

[Anonymous]

Please exaplin IBR or direct me to somebody 9something office) who can. Federal Direct Loans does not understand or can't explain.

http://www.ibrinfo.org/what.vp.html

I am a GS-15, step 2. Head of Household of 2. No support. 1 job. 172 debt.
Is the repayment capped at 15%?


Sorry for the cross post from Off Topic