Documents and information needed for customs formalities are kept for at least three years, by means accessible to and acceptable by customs, counting from the end of the year of acceptance of the release or export declaration (or of the end of end-use supervision, procedure discharge or temporary storage), extended by three years where an entry in the accounts is corrected, and until any appeal or court case ends.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.