How is a determination made of whether a duty station is designated as family or non-family as of 1 July 2011?

Duty stations from which dependents have been evacuated will be designated as “non-family duty stations” where a determination has been made that the medium- or longer-term presence of non-essential staff and/or dependents is dangerous or unsuitable for reasons of their safety and security. The determination of a duty station as non-family will normally be made within six months of the declaration of an evacuation.