Division 4.1.2 Specific test conditions for vehicles United Kingdom Original text. Later amendments are not shown. 4.1.2.1Vehicles of category M1, M2 ≤ 3 500 kg, N1 4.1.2.2Vehicles of categories M2 > 3 500 kg, M3, N2, N3 ← Division 4.1.1 Division 4.1.2 Division 4.1.2.1 →