This European Standard specifies the basic structure of the message elements, or items of information, that are put together to form the common message sets used in exchanging information in an After Theft System for Vehicle Recovery. Parts 3, 4 and 5 of EN 15213 define the content of these messages. The design is such that all currently identified information can be included in an unambiguous format, while allowing for additional items to be included should they either be required in the future or become available in the future. These message elements can also be referenced in a unique manner and described in plain language for transmission by voice, fax or e-mail. Similarly the data can be encoded in XML language for electronic transmission. Standards for Automatic Vehicle Identification (AVI) and Automatic Equipment Identification (AEI) are being developed by CEN/TC 278/WG 12 in parallel with EN ISO 14814. This ATSVR standard does not prejudice that work and does not seek to establish parameters for future AVI/AEI standards. DSRC and AVI standards are seen as the basic technology blocks for types of short-range ATSVR systems. This part of EN 15213 aims to identify the main elements and illustrate the data concepts and way forward.