On January 13, 2021 the U.S. Army Corps of Engineers (Corps) published the notice in the Federal Register (86 FR 2744) announcing the reissuance of 12 existing nationwide permits (NWPs) and issuance of 4 new NWPs, as well as the reissuance of NWP general conditions and definitions with some modifications. The 16 NWPs will go into effect on March 15, 2021 and will expire on March 14, 2026. The sixteen 2021 NWPs that must follow the 2021 requirement are NWP 12, 21, 29, 39, 40, 42, 43, 44, 48, 50, 51, 52, 55, 55, 56, 57, and 58.