Section 264(2) in U.P. Building And Other Construction Workers (Regulation Of Employment And Conditions Of Service) Rules, 2009
(2)The Chairperson of such Board shall preside over every meeting of the Board in which he is present and in his absence he may nominate a member of the Board to preside over such a meeting in his place and in the absence of such nomination by the Chairperson, the member of such Board present in such meeting may choose from among themselves a member to preside over such a meeting.