The emergency contact is a name carrying a responsibility that may never have been discussed.

Being named as someone’s emergency contact is a real responsibility that is frequently never mentioned. The name goes on a form, and the person may not know, may not be reachable, may not be in a position to help. A serious arrangement gets made unilaterally and then assumed to be in place.

So have the conversation. Tell the people you have listed, and ask the people who may have listed you. Check that the numbers are current. It takes one message and it removes a failure that is discovered only at the worst possible time, when nobody has any capacity for solving it.