I was curious because of a few posts I read. I ran into these and though a few people might be interested in these two documents. Explains some things about public charge and what is and is not considered public charge.
http://www.fns.usda.gov/fsp/rules/Memo/PRW...ubliccharge.pdf
http://www.fns.usda.gov/fsp/rules/Memo/PRW...eldguidance.pdf
Happy reading...........................
Baileyj