10.—(1) The prohibitions in Article 129(D)(1) and (1A) of the Order shall not apply in relation to—
(a)a small child aged 3 years or more if a seat belt of a description prescribed by regulation 8 for a small child of his height and weight is not available in the front or rear of the vehicle and he is wearing an adult belt;
(b)a child holding a medical certificate;
(c)a child aged under 1 year in a carry cot, provided that the carry cot is restrained by straps; or
(d)a disabled child who is wearing a disabled person's belt.
(2) The prohibition in Article 129D(1) of the Order shall not apply in relation to—
(a)a small child in a passenger car if no appropriate seat belt is available for him in the front or in the rear of the vehicle;
(b)a small child in a vehicle other than a passenger car if no appropriate seat belt is available for him in the rear of the vehicle; or
(c)a large child in any vehicle if no appropriate seat belt is available for him in the rear of the vehicle.
(3) The prohibition in Article 129D(1A) shall not apply in relation to a child if no appropriate seat belt is available for him in the front of the vehicle.