The Public Records Office of Northern Ireland (PRONI) has announced that it will be operating a limited service from Monday 9 to Friday 13 December.
While the Search Room and Microfilm Self Service Areas will be in operation, researchers will be unable to order any original documents from the stores.
In addition there will not be a late night opening during that week. The Search Room and Reading Room will close at 4:45pm on Thursday 12 December.
There will be no late night the following week, either, with the Search Room and Reading Room closing at 4:45pm on Thursday 19 December.
PRONI will be closed over the festive period on the following dates: 25, 26 and 27 December and 1 January 2014.