When signing the European Agreement concerning the Work of Crews of Vehicles engaged
                                       in International Road Transport, the undersigned, duly authorized, have agreed on
                                       the following:
                                    
                                    The Contracting Parties declare that this Agreement is without prejudice to such provisions
                                       as may, if appropriate, subsequently be drawn up in the matter of the duration and
                                       spread-over of work.
                                    
                                    
                                       ad article 4 of the Agreement
                                       
                                    
                                    The provisions of article 4, paragraph 1, shall not be construed as rendering applicable, outside the State in which the vehicle
                                       performing the transport operation is registered, any prohibition of traffic on certain
                                       days or at certain hours which may apply in that State to certain categories of vehicles.
                                       The provisions of article 4, paragraph 2, shall not be construed as preventing a Contracting
                                       Party from enforcing in its territory the provisions of its domestic laws and regulations
                                       which prohibit certain categories of vehicle traffic on certain days or at certain
                                       hours.
                                    
                                    Every Contracting Party which, being a Party to a special agreement as referred to
                                       in article 4, paragraph 2, of this Agreement, authorizes international transport operations beginning and ending
                                       in the territories of the Parties to the said special agreement by vehicles registered
                                       in the territory of a State which, being a Contracting Party to this Agreement, is
                                       not a Party to the said special agreement may make it a condition for the conclusion
                                       of bilateral or multilateral agreements authorizing such transport operations that
                                       the crews performing those operations shall, in the territories of States Parties
                                       to the said special agreement, comply with the provisions of the said special agreement.
                                    
                                    
                                       ad article 12 of the Agreement
                                       
                                    
                                    The undersigned undertake to discuss after the Agreement has entered into force the
                                       insertion therein, by means of an amendment, of a clause providing for the use of
                                       a control device of approved type which when placed on the vehicle would so far as
                                       possible replace the individual control book.
                                    
                                    
                                       ad article 14 of the Agreement
                                       
                                    
                                    The Contracting Parties recognize that it would be desirable for:
                                    
                                    
                                       - 
                                          
- each Contracting Party to adopt the measures necessary to enable it to institute proceedings
                                             on account of breaches of the provisions of the Agreement not only if the breaches
                                             are committed in its territory, but also if they are committed in the territory of
                                             another State during an international road transport operation performed by a vehicle
                                             which the Contracting Party has registered;
                                        
                                       - 
                                          
- them to afford one another assistance for the purpose of imposing penalties for breaches
                                             committed.
                                        
                                    
                                    
                                    
                                       ad annex to the Agreement
                                       
                                    
                                    Notwithstanding paragraph 4 of the general provisions of the annex to this Agreement, Switzerland may dispense with the requirement that employers must
                                       sign the weekly reports in the individual control book.
                                    
                                    IN WITNESS WHEREOF, the undersigned, being duly authorized thereto, have signed this
                                       Protocol.
                                    
                                    DONE at Geneva this first day of July nineteen hundred and seventy, in a single copy,
                                       in the English and French languages, the two texts being equally authentic,