The 2012 date is related with the assessment required for all Visteon sites regarding the EH&S Integrated Management System (Now it’s necessary to do at least two times per year).
The intranet page have also the option to consult the historic where is available all the previous information regarding the assessments.
Please see bellow image regarding the historic (the VETL site code and name was created when the Visteon Product Group where implemented and at the time VETL was in the other location)