Need to change US Consulate?

[como 0]

If an immigrant visa applicant takes up a job and moves to another country before they’ve had their interview at the US Consulate...  Would their application have to be transferred to the US Consulate in the country they’ve moved to?

[JFH 12,190]

It can be. The applicant may have their interview either in the embassy with jurisdiction over their home country or the embassy with jurisdiction over the country where they have residency. 
 

For example, if you are Italian but move to Ireland to live and work then you can be interviewed either in Italy or in Ireland. 

[como 0]

This makes sense. Supposedly the default US Consulate is based on the residency of the applicant?

 

Where would a request for change of Consulate be made:

 

a) Prior to submitting a DS-260 or scheduling an immigrant visa interview;

b) After an interview is scheduled?