Certain U.S. federal grant applications require the use of "recent" data, e.g.
data used to support the application should come from recent (i.e. within the past 5 years) published source
Is there a standard by which one should determine the recency of a dataset? For example, American Community Survey data for 2007 - 2011 wasn't released until late 2012. Do you consider data to be as 'old' as its date of collection, projection date or release?