It oversees government expenditures to ensure they are effective and honest.
It is responsible for examining reports of Comptroller and Auditor General on Departmental expenditure and certain other accounts.
It also considers the Comptroller and Auditor General's reports of economy, efficiency, effectiveness evaluation systems, procedures and practices.
The PAC has a key role to play in ensuring accountability and transparency in the way Government agencies allocate, spend and manage their finances and in guaranteeing that the taxpayer receives value for every euro spent.
The committee is constituted to be impartially representative of the Dáil and consists of thirteen members.