Not that way I interpret it but I don't have much experience with it. Schools can offer you GradPlus loans, but you still have to qualify for them...
And I believe the credit check takes place after you return the paperwork (telling the school what loans you want)...
In other words, they don't pre-qualify your loans; they qualify them when you apply for them and you don't apply for them until you accept them (by returning the paperwork)...
But again, I could be wrong...