Provisions supplementary to Articles 11 and 12
13. For the purposes of Articles 11 and 12 and Schedule 2, an agricultural implement rigidly mounted on an agricultural motor vehicle, an agricultural trailer or an agricultural trailed appliance shall be treated as part of that vehicle, trailer or appliance whether or not—
(a)the implement is permanently attached thereto; and
(b)part of the weight of the implement is transmitted to the surface of the road otherwise than by the wheels or tracks of the motor vehicle, trailer or appliance.