I have a student whose code for the create project does not meet the requirements. He does not have a loop or a parameter in the function. Can I tell him to go back and fix it or is that against AP policy?
You cannot specifically tell a student what their code is missing.
You can refer all your students to what is required and generally remind all students to check their work to make sure it includes all the requirements. One thing I am going to do is pass out a checklist with the requirements and pass it out to all students for them to self-check their own work, but personalized feedback is not allowed, even if you vaguely tell them it does not meet the requirements without stating which ones are missing.