1.With effect from 1 October 1983, no Member State may:
refuse to grant EEC type-approval, to issue the document referred to in the last indent of Article 10 (1) of Directive 74/150/EEC or to grant national type-approval in respect of a type of tractor, or
prohibit the entry into service of tractors,
if the driver's seat of this type of tractor or of these tractors complies with the provisions of this Directive.
2.With effect from 1 October 1984, Member States:
shall no longer issue the document referred to in the last indent of Article 10 (1) of Directive 74/150/EEC in respect of a type of tractor in which the driver's seat does not comply with the provisions of this Directive,
may refuse to grant national type-approval in respect of a type of tractor in which the driver's seat does not comply with the provisions of the present Directive.