** LEGAL UPDATE **
Based on a court order (a preliminary injunction issued in the case Ramos v. Nielsen), the U.S. government must maintain Temporary Protected Status (TPS) for immigrants from four countries for which it had previously announced an end to TPS: Sudan, Nicaragua, Haiti, and El Salvador; at least until the court can make a final decision on whether the TPS terminations were valid.
Of course, with TPS beneficiaries from these countries not having applied for any actual extension from U.S. Citizenship and Immigration Services (USCIS), their work permits (also called employment authorization documents or EADs) and other documents from USCIS (I-797s, I-94s) proving status in the U.S. will show an old expiration date.
In response to this issue, USCIS announced in the March 1, 2019 Federal Register that no action by TPS holders is needed. The documents are automatically extended through the January date.
If you need to prove your status in the U.S. or your right to work, you should use your old documents in combination with a copy of the above Federal Register notice.
Beware: If further court action takes place before January of 2020 and the U.S. government is allowed to end TPS after all, this automatic extension will end early. See After TPS Expires, What Are My Immigration Options?
Also realize that, if you do anything to make you personally ineligible for TPS, it can be taken away.
Effective Date: March 1, 2019