In this Part other than in section 825 -
"the Acts" means - (a) the Tax Acts, (b) the Capital Gains Tax Acts, and (c) the Capital Acquisitions Tax Consolidation Act 2003, and the enactments amending or extending that Act, and any instruments made thereunder;
"authorised officer" means an officer of the Revenue Commissioners;
"present in the State", in relation to an individual, means the personal presence of the individual in the State;
"tax" means any tax payable in accordance with any provision of the Acts.