ANNEX I CRequirements for construction, testing, installation, and inspection

Appendix 11

COMMON SECURITY MECHANISMS

PART BSECOND-GENERATION TACHOGRAPH SYSTEM

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

11.3.Mutual Certificate Chain Verification

11.3.2During VU — EGF Coupling

CSM_209

In deviation from requirement CSM_167, an EGF shall use the GNSS time to verify the temporal validity of any certificate presented.