To designate the facility of the United States Postal Service located at 80 1st Street in Kingsland, Arkansas, as the "Kingsland 'Johnny Cash' Post Office".

What it does

A plain-language summary is coming. Here is the official summary from the Congressional Research Service:

This act designates the facility of the U.S. Postal Service located at 80 1st Street in Kingsland, Arkansas, as the Kingsland 'Johnny Cash' Post Office.