- presiding over the proceedings of the Sejm,
- to uphold the rights of the Diet,
- Representing the Sejm externally,
- deputizing for the President of the Republic when necessary,
- administering elections for the office of President of the Republic,
- Presiding over the National Assembly,
- Ensuring that Members are complying with the law,
- Directing motions to the Constitutional Court on the compliance of normative acts with the Constitution.