> Unfortunately, Tether has decided to stop serving U.S. individual and corporate customers altogether. As of January 1, 2018, no issuance or redeeming services will be available to these users. Exceptions to these provisions may be made by Tether, in its sole discretion, for entities that are: Established or organized outside of the United States or its territorial or insular possessions; and, Eligible Contract Participants pursuant to U.S. law.

> An Eligible Contract Participant includes a corporation that has total assets exceeding $10,000,000 and is incorporated in a jurisdiction outside of the United States or its territories or insular possessions. This will be the principal basis upon which we will continue to do business with selected U.S. persons.

Basically, it looks like they only provide on and off ramps for large clients outside the US. Given their history, I am betting they might not want to reveal where they store their assets, and don't want to deal with US regulators (but not sure this is working).