In this task, you are provided with an article about the legal acts. Your task is to generate a headline for that article.

1. 'Agricultural or forestry tractor' means any motor vehicle, fitted with wheels or caterpillar tracks and having at least two axles, the main function of which lies in its tractive power and which is specially designed to tow, push, carry or power certain tools, machinery or trailers intended for agricultural or forestry use. It may be equipped to carry a load and passengers.2. This Directive shall apply only to tractors defined in the preceding paragraph which are fitted with pneumatic tyres and which have two axles and a maximum design speed of between 6 and 25 km/h. No Member State may refuse to grant EEC type-approval or national type-approval of a tractor on grounds relating to the field of vision or windscreen wipers if these satisfy the requirements set out in the Annex. No Member State may refuse the registration or prohibit the sale, entry into service or use of tractors on grounds relating to the field of vision or windscreen wipers if these satisfy the requirements set out in the Annex. The amendments necessary for adapting to technical progress the requirements of the Annex shall be adopted in accordance with the procedure laid down in Article 13 of Directive No 74/150/EEC. 1. Member States shall put into force the provisions necessary in order to comply with this Directive within 18 months of its notification and shall forthwith inform the Commission thereof.2. Member States shall ensure that the texts of the main provisions of national law which they adopt in the field covered by this Directive are communicated to the Commission. This Directive is addressed to the Member States.
Council Directive on the approximation of the laws of the Member States relating to the field of vision and windscreen wipers for wheeled agricultural or forestry tractors