What does, "60% of a full time course load for one year," mean? The context is making timely progress in Social Security Disability's Ticket To Work Program. Example on chart here, http://www.ssa.gov/pubs/EN-05-10062.pdf

Can you give an example of how to fulfill that requirement?

(I am asking elsewhere AND asking here. The sooner and more thoroughly this question can be answered, the better.)