Recently a dispute has arisen at Talk:U.S. Post Office#U.S. vs. United States over two issues arising in the titling of articles about federal buildings in the United States, particularly historic post offices, customhouses, and federal courthouses. The first issue is whether the title of such an article should spell out "United States" or use the abbreviated "U.S." (all sides agree that the unpunctuated "US" is improper). The second issue is whether the title of such an article should correspond to the enactment of legislation by the United States Congress to designate the name of the federal building in question. The purpose of this RFC is to establish a single convention to serve as the default standard on whether to use "United States" or "U.S.", and whether to use Congressionally designated names. The parties recognize that there may be individual articles representing unique circumstances, under which default rules should not apply.
This dispute affects several hundred existing articles, and several thousand red links for articles to be written. It does not address the naming of government agencies, or of highways. A fairly complete list of Congressionally designated names established over the past 35 years can be found at Wikipedia:WikiProject United States courts and judges/United States Congressional naming legislation.