| 28H Application for advance ruling. |
| 28L Powers of Authority |
| 28M Procedure of Authority |
| 28G Vacancies, etc., not to invalidate proceedings |
| 28E Definitions |
| 28F Authority for advance rulings |
| 28I Procedure on receipt of application |
| 28J Applicability of advance ruling |
| 28K Advance ruling to be void in certain circumstances |