The term 'LAB SECTION LEADERS' refers to Teaching Assistants (TAS) who are responsible for leading a section of a laboratory course. They are typically graduate students who are assigned to a particular lab section and are responsible for helping the professor with the course, such as grading assignments, providing feedback to students, and helping to facilitate the lab activities. TASs are also responsible for ensuring that the lab is running smoothly and that all safety protocols are being followed.