11. i henhold til ADR-konventionens bestemmelser kan landene indgå aftaler, der afviger fra ADR, og det store antal aftaler, der er forhandlet på bilateral basis mellem medlemsstaterne, skaber fordrejning af den fri udveksling af serviceydelser vedrørende transport af farligt gods; indføjelsen af de nødvendige bestemmelser i bilagene til dette direktiv vil kunne imødekomme behovet for sådanne afvigelser; det er nødvendigt at regne med en overgangsperiode, hvor medlemsstaterne fortsat anvender bestående aftaler;
(11) Whereas the provisions of the ADR authorize the conclusion of agreements derogating therefrom, and whereas the large number of agreements concluded bilaterally between Member States impedes the free provisions of dangerous-goods transport services; whereas including the necessary provisions in the Annexes to this Directive should overcome the need for such derogations; whereas provision should be made for a transitional period during which the Member States may continue to apply existing agreements amongst themselves;