When you receive notification of an assignment to HQ NRDC-ITA, you should also be notified the name of the person who will be sponsoring you. This person could be a colleague already working at the Headquarters, and often the person you are replacing.
Your sponsor will help you with your possible needs prior to your arrival at the Headquaters, particularly in terms of inprocessing related documents, possible assignment related issues and accomodation arrangements.
If you have not been notified who your sponsor is, you should contact the authorities responsible for your assignment.
In terms of domestic arrangements (housing, Italian legal documents, families, schooling, etc), there are two possibilities to be helped:
Your National Support Element located here at Solbiate Olona (if you have one), or;
The Families' Support Centre.