National Social Security Board composition and tenure rules shape nominations, vacancies, committees, and interim continuity for worker welfare governance. Rule 9 sets out the composition and functioning of the National Social Security Board for unorganised workers and the corresponding Board for gig and platform workers. It prescribes tenure, nomination categories, cessation of membership, quorum, expert and issue-specific committees, reconstitution timelines, resignation and vacancy procedures, address updates, and interim arrangements where reconstitution is delayed. It also requires abstention during removal proceedings and makes the Central Government's decision on debarment, disqualification and removal final.