TDR / Modified Loans

I have not been able to determine if there are any specific or special provisions out there relating to TDR/Modified Loans that deal with a member who has a loan (real estate or consumer loan), modified under SCRA, and subsequently experiences difficulty paying it and asks for help.  As an example, are there any special guidelines for HARPs or HAMPs that deal with this situation or will the loan always and only fall under SCRA?