IUPAC has five Officers: The President, the Vice President, the Past President, the Secretary General, and the Treasurer.
The President is the administrative head of the Union, and chairs the meetings of the Council and the Executive Board. The President is reports on the State of the Union at each biennial meeting of the Council.
The Vice President chairs the Science Board and provides them with a critical assessment of the programs and the projects of all IUPAC bodies. As President-Elect, the Vice President assumes the office of President if the President is unable to perform their official duties. Such representation does not affect the subsequent term as President.
The Secretary General carries out the business of the Union as specified by the governance bodies of the Union, and is responsible for keeping its records and for the administration of the Secretariat.
The Treasurer is responsible for the accounts of the Union. This includes preparing the biennial budget of the Union, expenditure approvals, and responsibility for the investment and custody of the funds of the Union. The Treasurer ensures that an appropriate record of all financial authorities and transactions is maintained.