means any check, inspection, verification or formality performed at the frontiers of Member States by the national authorities which signifies a stop or a restriction on the free movement of the vehicles or vessels concerned.
means either an internal frontier within the Community or an external frontier, where carriage between Member States involves crossing a third country;
The controls referred to in Annex I, and performed pursuant to Community or national law in the fields of road and inland waterway transport between Member States, shall not be performed as frontier controls but solely as part of the normal control procedures applied in a non-discriminatory fashion throughout the territory of a Member State.