For the SLP Summit conference, the one time fee applies to all courses in the conference!
The fee is per conference, not per course. So whether you attend one or all courses, the $29.99 fee will cover your ASHA CEU opt in fees for all.
Note: Paying the fee alone does not guarantee you ASHA CEU credit. You must also complete all course requirements (view the course, provide course feedback, pass the course quiz with 80% or higher accuracy, and complete the opt in form for each course) before the deadline noted in the course details. See Participation and Completion requirements on each course details page for more information.