Potential recipients have to prove they worked for a minimum of 30 days in the location depicted by the clasp, during a period of time set in the award criteria. In addition, potential recipients have to be working for an aid organisation recognised by the criteria or with a United Nations taskforce during that timeframe. In 2005, special criteria were established for people working during the 2004 Indian Ocean earthquake or the 2005 Nias–Simeulue earthquake, with a maximum time period of 7 or 14 days depending on the time frame.