US and U.S. are both abbreviations of United States. Both of these abbreviations can be correct. ... The Associated Press Stylebook prefers the abbreviation U.S. with periods. However, the Chicago Manual of Style prefers US without periods.

What is correct US or US?

United States and U.S.

In APA style, "United States" should always be spelled out when it is used as a noun or location. Example: In the United States, 67% reported this experience. United States can be abbreviated as "U.S." when it is used as an adjective.

Should US have periods AP style?

AP Style holds that you should use periods in the abbreviation for United States within text. It is U.S. (with periods). In headlines, however, the abbreviation has no periods. It is US (with no periods).