Question about student loan forgiveness due to disability?

I have been disabled for a while and have just been approved for discharge of my student loans. The guarantor paid off my loans – I haven’t gotten all of the paperwork yet, but Sallie Mae just verified over the phone that they no longer hold the loan, it’s been paid in full. I noticed that my preliminary letter said something about a requirement of “not having annual earnings from work in excess of the poverty level for a family of two.”
Question: Does this annual earnings requirement apply only to me, or to my entire household’s (i.e. husband’s) income? If it applies to the entire household income, that seems pretty excessive. If it applies to me, then it seems like a silly requirement. If I could work in any capacity then I wouldn’t have requested a loan discharge!
Any insight would be appreciated!

Ask whatever agency sent you the letter – they would know the answer to that question.