If my position is approved for teleworking or remote work, do I need to take the training annually or just once?

The training will only be required to be taken once; however, it will be available as a refresher for anyone who wants to take it each year.

Working Remotely/Teleworking at Charlotte

Managing Charlotte's Telework/Remote Work Employees

NOTE:  If you are an employee who previously completed Collaborating as a Virtual Team Member or a supervisor who completed Establishing Effective Virtual Teams, no further training is required.