Sending ACT Scores

I need to send my ACT scores to UPenn and Stanford (deadlines Jan 5th and 2nd). Will they arrive on time considering the holidays? Please help I’m so nervous thank you!!

It should be ok. I did the same thing to a few different universities and called them to see if they would still accept my scores even though the application deadline passed, and they said it is fine.

All of them told me that the application deadline is only the deadline to submit the Common App and writing supplements, and additional materials can arrive after the deadline without any penalty (as long as they arrive within a week or two after the deadline).