According to the explanations on the website "Obyasnyayem.rf" ("Explaining" - editor's note), valid reasons for non-appearance on the agenda include:
It is noted that the listed reasons are considered valid only if the listed circumstances are documented. After the expiration of the valid reason, the persons liable for military service, who were served with the summons, are obliged to arrive at the military registration and enlistment office. The occurrence of a valid reason for non-appearance does not provide for the delivery of an additional summons (summon) to visit the military commissariat.