USS Zumwalt (DDG-1000) is to be the lead ship of the Zumwalt class of guided missile destroyers and the first ship to be named for Admiral Elmo Zumwalt.
Many of the ship's features were originally developed under the DD21 program ("21st Century Destroyer"). In 2001, Congress cut the DD-21 program by half as part of the SC21 program; to save it, the acquisition program was renamed as DD(X) and heavily reworked. The initial funding allocation for DDG-1000 was included in the National Defense Authorization Act of 2007.
A January 26, 2009 memo from John Young, the Defense Department's top acquisition official, stated that the per ship price for the Zumwalt destroyers had reached $5.964 billion, 81 percent over the Navy's original estimate used in proposing the program. If true, that means that the program has breached the Nunn–McCurdy Amendment, requiring the Navy to recertify and rejustify the program to United States Congress.