To your clarification, Ms. Kwan, it is our established practice that the chair has the right, on a case-by-case basis, to expand the number of witnesses for extenuating reasons. Even if the committee decides to set a limit, be it two, three, four or whatever it is, if there is some reason why an organization would like to have more representatives and it is a compelling reason to the committee or the chair, then the committee reserves the right to allow for more representatives, despite the cost.
On October 14th, 2020. See this statement in context.