vice-chairpersons

基本解释

The Board of Directors can create specialized task forces based on need. One or more vice-chairpersons or assistant secretaries will head these task forces.
第十七条本会根据工作需要，设立专门工作委员会、专门事项小组，由一名或多名副理事长或副秘书长负责。
tsinghuayouth.org
This session of Codex will also elect a new Chairperson and Vice-Chairpersons for the Commission, and will review the current structure of its subsidiary bodies.
本届食典委会议还将选出委员会新的主席和副主席，并将审查其附属机构的现有结构。
The Board of Directors will establish several youth task forces lead by one or more vice-chairpersons or assistant secretaries. One or more youth will also share responsibility for their task force.
第十八条本会设立多个青少年工作委员会（如网站建设和维护委员会等），由一名或多名副理事长或副秘书长负责，同时有一名或多名青少年担任共同负责人。
tsinghuayouth.org

There are 40 seats on IOC Executive Council (1 Chairperson, 5 Vice-chairpersons and 34 Member States).
UNESCO: Social and Human Sciences
After the close of the 36th session of the General Conference, the Executive Board will meet to elect its Bureau (Chairperson, Vice-chairpersons, Commission Presidents and Commissions).
UNESCO: MEDIA SERVICES