You are looking at a schedule called 'Expenditure and activities related to research and development'. This schedule is part of the Income Tax Act 2007. It has extra information that is not in the main act, like extra clauses and definitions. This schedule is empowered by certain parts of the legislation, which you can find at LH 3(1), LH 5(3), (4), LH 7(2), and LH 8. You can click on these links to learn more about these parts. The schedule is marked as repealed, which means it is no longer in effect.