“this Act” includes any proclamation, government notice, regulation or rule issued or made or agreement concluded or deemed to have been concluded thereunder, any agreement contemplated in section 49, or any taxation proposal contemplated in section 58 which is tabled in the National Assembly;

[Definition of “this Act” substituted by section 1 of Act 57 of 1966, section 46 of Act 53 of 1999 and section 60 of Act 59 of 2000]