Division 7.2 Additional NOx control requirements in case of Type 1B, Type 2B and Type 3B dual-fuel engines United Kingdom Original text. Later amendments are not shown. 7.2.1Division 7.2.1 7.2.2Division 7.2.2 7.2.3Division 7.2.3 7.2.4Division 7.2.4 7.2.5Division 7.2.5 ← Division 7.1 Division 7.2 Division 7.2.1 →