Presenters, working group chairs and RIPE Programme Committee members pay to attend the RIPE Meetings like all other attendees. In extraordinary circumstances, the RIPE Chair can waive the meeting fee for presenters. These requests are dealt with on a case-by-case basis via email@example.com.
Presenters should be clear on whether they wish to submit a presentation for a plenary or working group (WG) session. If you’re not sure what kind of session you should be presenting at, read about the difference between plenary and working group sessions.