The Corps of Engineers published the final new and modified replacement Nationwide Permits (NWP) in the Federal Register on March 9, 2000. The maximum acreage limit under the new and modified NWP's is one-half acre and most new NWPs require that the Corps be notified of activities impacting more than one-tenth of an acre. The NWPs also provide additional protections to critical resource waters, 100-year floodplains, and streams. The new and modified NWPs became effective on June 7, 2000, at which time NWP 26 (Headwaters and Isolated Waters) expired.

• 2000 Final NWP (PDF)(83 pp, 534 K, March 9, 2000)