As a new instructor, having this element within your syllabus is key. I say this for a few reason. As a new instructor, if I did not provide this element early, students would walk all over me and use this to their advantage. For example, if they submit something late, they could come back to me and say, "it is was never outlined in the syllabus." I will have little room to talk and my report with students will be tarnished. This will reflect on my abilities as a teacher for semesters to come. And second, if this is noticed by students, some may take full advantage of this. They will not submit things on time because there are zero repurcussions.