** LEGAL UPDATE **
If you have been granted Temporary Protected Status (TPS) as a national of either El Salvador, Haiti, Honduras, Nepal, Nicaragua, or Sudan, the U.S. government has extended your status and your work permission. The extension lasts through October 4, 2021. It is an automatic extension, which you need not apply for.
However, the automatic extension assumes that you remain eligible for TPS, having re-registered during every extension, and that your work permit (employment authorization document or EAD) has a category code of A-12 or C-19 as well as one of the following expiration dates:
If you haven't re-registered, you might be able to remedy that by doing so now, using USCIS Form I-821.
For more about automatic extensions such as this one, see Why Employees With TPS Might Legally Work Past Expiration Date on Work Permit.
If you would prefer to have an actual, physical work permit showing the new expiration date (October 4, 2021), and you are willing to pay the application fee (or qualify for a fee waiver using Form I-912), you may apply to USCIS for this, using Form I-765. See the detailed application procedures set forth in the December 9, 2020, Federal Register notice.
In planning for the future, and in case the TPS designation for your country is not renewed, you might also want to see After TPS Expires, What Are My Immigration Options?
Effective Date: December 14, 2020