Division 4.3

M₃ or N₃ vehicles whose maximum mass exceeds 12 tonnes shall be subcategorised as off-road vehicles if they satisfy either the condition set out in point (a) or the conditions set out in both points (b) and (c):

1. (a)

   all their axles are driven simultaneously, irrespective of whether one or more powered axles can be disengaged;

2. (b)
   1. (i)

      at least half of the axles (or two axles out of the three in the case of a three axle vehicle and three axles in the case of a five axle vehicle) is designed to be driven simultaneously, irrespective of whether one powered axle can be disengaged;

   2. (ii)

      there is at least one differential locking mechanism or a mechanism having similar effect;

   3. (iii)

      they are able to climb a 25 % gradient as solo vehicle;

3. (c)

   they satisfy at least four out of the following six requirements:

   1. (i)

      the approach angle shall be at least 25 degrees;

   2. (ii)

      the departure angle shall be at least 25 degrees;

   3. (iii)

      the ramp angle shall be at least 25 degrees;

   4. (iv)

      the ground clearance under the front axle shall be at least 250 mm;

   5. (v)

      the ground clearance between axles shall be at least 300 mm;

   6. (vi)

      the ground clearance under the rear axle shall be at least 250 mm.