It depends on what committee you are talking about.
Seniority system
Seniority.
Committee chairpersons decide if a bill will get a hearing or not.
The majority party from each house selects the chairperson for each committee.The unwritten rule of the seniority system traditionally has guided the selection of chairpersons. The seniority system gave the member of the majority party with the longest uninterrupted service on a particular committee the leadership of that committee.
The International Olympic Committee.
Members of Congress usually choose committee chairperson on the basis of seniority. Nominations are made by the majority party caucus or conference.
Sign vouchers for expensescall additional meetingsapprove summaries of testimonenforce order.
The Hockey Hall of Fame Selection Committee.
The games committee decide what events will take place.
The plural of chairperson is chairpersons.
Chairpersons is the plural form.
Cities interested in hosting the Olympic Games submit a bid to the International Olympic Committee. The bids are evaluated by the committee who then makes the choice of the host city.