See University guidance on what to include in course syllabi about the mask requirement (PDF).
In addition, see Penn State syllabus requirements outlined in Faculty Senate Policy 43-00, including a number of example syllabus statements.
Be sure to check with your college or campus regarding locally mandated syllabus policies.
For this instructional mode, consider adding a brief description of how you will conduct class in this mode and your expectations for students’ participation. You might address questions like, should students be active during whole-class discussions and should they participate in small group activities by speaking with each other or by using online communication and collaborative tools?