Division 3.2 Unburned gas release United Kingdom Original text. Later amendments are not shown. 3.2.1Division 3.2.1 3.2.2Division 3.2.2 3.2.3Division 3.2.3 3.2.4Division 3.2.4 ← Division 3.1.13 Division 3.2 Division 3.2.1 →