Commission Implementing Regulation (EU) 2016/799 of 18 March 2016 implementing Regulation (EU) No 165/2014 of the European Parliament and of the Council laying down the requirements for the construction, testing, installation, operation and repair of tachographs and their components (Text with EEA relevance) (c. 799)

ANNEX I C U.K. Requirements for construction, testing, installation, and inspection

Appendix 11

COMMON SECURITY MECHANISMS U.K.

PART B U.K. SECOND-GENERATION TACHOGRAPH SYSTEM

11. VU — EXTERNAL GNSS FACILITY COUPLING, MUTUAL AUTHENTICATION AND SECURE MESSAGING U.K.

11.1. General U.K.

CSM_199 Communication between a vehicle unit and an EGF differs from communication between a vehicle unit and a card in the fact that a vehicle unit and an EGF must be coupled once in a workshop before the VU and the EGF can exchange GNSS-based data during normal operation. The coupling process is described in section 11.2. U.K.