USADF is not required to transfer a debt to BFS pursuant to §1506.37(b) during the period of time that the debt:

(a) Is in litigation or foreclosure;

(b) Is scheduled for sale;

(c) Is at a private collection contractor;

(d) Is at a debt collection center if the debt has been referred to a Treasury-designated debt collection center;

(e) Is being collected by internal offset; or

(f) Is covered by an exemption granted by Treasury.