Editing Encyclopedia:Manual of Style (section)

===US and U.S.<span class="anchor" id="US"></span><span class="anchor" id="U.S."></span><span class="anchor" id="USA"></span><span class="anchor" id="U.S.A."></span>===
{{Shortcut|MOS:US|MOS:USA|MOS:NOTUSA}}
{{redirect|MOS:US|the use of the word "us"|Wikipedia:Manual of Style#First-person pronouns}}
{{xt|US}} is a commonly used abbreviation for {{xt|United States}}, although {{xtn|U.S.}} – with periods and without a space – remains common in North American publications, including in news journalism. Multiple American style guides, including ''[[The Chicago Manual of Style]]'' (since 2010), now deprecate {{!xt|U.S.}} and recommend {{xt|US}}.

For [[#Opportunities for commonality|commonality]] reasons, use {{xt|US}} by default when abbreviating, but [[#Retaining existing styles|retain]] {{xtn|U.S.}} in American or Canadian English articles in which it is already established, unless there is a good reason to change it. Because use of periods for abbreviations and acronyms should be consistent within any given article, use {{xt|US}} in an article with other country abbreviations, and especially avoid constructions like {{!xt|the U.S. and the UK}}. In longer abbreviations that incorporate the country's initials ({{xt|USN}}, {{xt|USAF}}), never use periods. When the United States is mentioned with one or more other countries in the same sentence, {{xt|US}} (or {{xtn|U.S.}}) may be too informal, especially at the first mention or as a noun instead of an adjective ({{xt|France and the United States}}, not {{!xt|France and the US}}). Do not use the spaced {{!xt|U.&nbsp;S.}} or the archaic {{!xt|U.S.&nbsp;of&nbsp;A.}}, except when quoting. Do not use {{!xt|U.S.A.}} or {{!xt|USA}} except in a quotation, as part of a proper name ({{xt|Team USA}}), or in certain technical and formal uses (e.g., the [[ISO 3166-1 alpha-3]], [[FIFA country codes|FIFA]], and [[List of IOC country codes|IOC country codes]]).