Son wants to add one more school. If too late, he won’t bother.
You should call and ask the specific school tomorrow. If the school accepts January SATs, they will definitely accept scores sent now.
Wash U?
Yes. Wash U. He has the score. Will there be enough time for the school to get it? He decided no more essays…so he dropped 2 schools and now add one back.
I would call them but you can likely still send them. They take 1-2 weeks to send (less if you pay extra to rush the scores) and most schools have some leeway.