Carolyn Rowlett's post in PWN was marked as the answer
When a PWN is required is sometimes state specific. So you might check your state department of education's website for a list of when they require PWN's (or just call). It is possible that they don't need to send you one until the change is put into the IEP document. A copy of the minutes should protect you from them withdrawing their proposals.
But there are other things you could do. You could send an email outlining the proposals made and agreed to at the meeting in the guise of "hey, I just wanted to confirm what we spoke about on_____ since we're coming up on the annual meeting."
You could also ask for a PWN showing the agreed to proposals (the worst they can do is say they don't have to do this).
Carolyn Rowlett's post in 1:1 Aide was marked as the answer
They need to provide a Prior Written Notice that they are denying your request for an aid. They also HAVE to put your parent concerns in the IEP document.
