This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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I, SPUI, the creator of this image, hereby release it into the public domain. If that cannot be done for any reason, including the nonexistence of a way to release a work into the public domain, I release it (or my changes in the case of a derivative work) under the following license:
This image is copyrighted. The copyright holder has irrevocably released all rights to it, allowing it to be freely reproduced, distributed, transmitted, used, modified, built upon, or otherwise exploited in any way by anyone for any purpose, commercial or non-commercial, with or without attribution of the author.
750 mm by 600 mm (30 in by 24 in) U.S. Route shield, made to the specifications of the 2004 edition of Standard Highway Signs. (Note that there is a missing "J" label on the left side of the diagram.) Uses the Roadgeek fonts. (United States law does not permit the copyrighting of typeface designs, and the fonts are meant to be copies of a U.S. Government-produced work anyway.)
Interstate 49 (abbreviated I-49) is an intrastate interstate highway located entirely within the state of Louisiana, United States. ... Interstate 530 in Arkansas is a nearly 47-mile long spur route from Little Rock at the junction of Interstate 30 and Interstate 440 in the northwest, to Pine Bluff in the southeast. ... The following bannered highways have existed: Defunct routes are listed in italics. ... Interstate 440 (abbreviated I-440) in Arkansas is a 10-mile-(16-km)-long partial loop connecting Interstate 40 with Interstate 30 near Little Rock. ...