# Council Directive 1999/37/EC of 29 April 1999 on the registration documents for vehicles, Division III.6: Technical characteristics and transmission protocols

Extent: E+W+S+N.I.

The format shall be ID-1 (normal size, see ISO/IEC 7810).
The card shall support transmission protocol T = 1 in compliance with ISO/IEC 7816-3. Additionally other transmission protocols may be supported, e.g. T=0, USB or contactless protocols. For bit transmission the ‘ direct convention ’ shall be applied (see ISO/IEC 7816-3).

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Source: https://www.legislation.gov.uk/eudr/1999/37/annex/II/division/III/division/III.6 (the official version)
Page: https://openlegislation.uk/eu-directive-1999-37/annex-II/division-III/division-III.6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.