Editing Tachograph (section)

=== In Germany (historical) ===
The ''Verkehrs-Sicherungs-Gesetz'' (German Traffic Safety Law) of 19 December 1952, made tachographs mandatory in Germany for all commercial vehicles weighing over 7.5 tonnes.{{Citation needed|date=March 2023}} Since 23 March and 23 December 1953, all new commercial vehicles and buses must be equipped with the device per law ''Straßenverkehrs-Zulassungs-Ordnung'' § 57a.{{Citation needed|date=March 2023}}

Tachographs are mandatory for vehicles allowed to carry a total weight of over 3.5 tonnes and vehicles built to carry at least 9 passengers, if the vehicle is used for commercial purposes. They are used to review the driving and rest time of drivers during reviews by traffic standards organizations or accident investigation. A driver must carry the tachograph records with him for all days of the current week and the last day of the previous week that he drove. Companies must keep the records for 1 year. In Germany, § 16 of the work time regulations lengthens this time to 2 years if the records will be used as proof of work time.{{Citation needed|date=March 2023}}