The "90-10" Rule is a federal law barring for-profit colleges from receiving more than 90% of their revenues from Department of Education federal student aid. It is modeled on the Department of Veterans Affairs' long-standing "85-15" Rule, which prohibits more than 85% of a program's students from receiving VA funding. It prevents for-profit colleges from being funded solely by federal taxpayers. If a college offers a quality education at a competitive price, someone other than the federal government will be willing to pay for it. This paper offers information on the for-profit college "90-10 Rule". (Contains 7 endnotes.)