Data collection
Article 3
1. Member States shall compile statistical data relating to the following areas: (a) vehicle; (b) journey; (c) goods. 2. The statistical variables in each area, their definition and the levels within the classification used for their breakdown are set out in Annexes I to VII. 3. When determining the method to be used for compiling statistical data, Member States shall refrain from carrying out any formalities at frontiers between Member States. 4. The Commission shall be empowered to adopt, where necessary, delegated acts in accordance with Article 8 concerning the updating of Part 1 of Annex I, solely in order to take account of economic and technical developments, except for any modifications to the optional nature of the required information. The Commission shall also be empowered to adopt, where necessary, delegated acts in accordance with Article 8 concerning the adaptation of Annexes II to VII to take account of economic and technical developments. In exercising its power pursuant to this paragraph, the Commission shall ensure that any delegated acts adopted do not impose significant additional administrative burdens on the Member States and on the respondents.