(14)Because of the complexity of the different systems and the number of alternative methods that can be used to synchronise to Coordinated Universal Time (‘UTC’), competent authorities need to understand how trading venues and their members, participants, or users ensure their traceability to the UTC. Therefore, trading venues and their members, participants or users should be able to demonstrate traceability to UTC by documenting the system design, functioning and specifications, to identify the exact point at which a timestamp is applied and to demonstrate that the point within the system where the timestamp is applied remains consistent. Given that clock drift can be affected by many different elements, it is also appropriate to determine an acceptance level for the maximum divergence from UTC.