<i>Do you really think that every one of the millions of American citizens who travel or live overseas each year is supposed to tell the US about their current location?</i><p>I didn&#x27;t presume there was such a requirement, but I also wouldn&#x27;t have been surprised if the fine print somewhere made it a selectively enforced requirement.  It doesn&#x27;t strike me as more or less onerous than some other actions that are currently required.<p><i>There is no &quot;supposed to.&quot;</i><p>I think you are correct, but when an official government agency &quot;encourages&quot; a certain behavior, it&#x27;s not too much of a stretch to presume that one is &quot;supposed to&quot; do it:<p><pre><code>  We encourage all U.S. citizens travelling or residing 
  overseas to notify the closest U.S. Embassy or Consulate of 
  their contact information so that, in an emergency, we can 
  contact them to provide important safety and security 
  information, or support during a crisis.
</code></pre>
<a href="https:&#x2F;&#x2F;step.state.gov&#x2F;STEP&#x2F;Pages&#x2F;Common&#x2F;FAQ.aspx" rel="nofollow">https:&#x2F;&#x2F;step.state.gov&#x2F;STEP&#x2F;Pages&#x2F;Common&#x2F;FAQ.aspx</a><p>What would your guess be as to the chances that some sort of registration will be made requirement in the future?