[Bloody Sam Roberts]

District of Columbia Official Code 2001 Edition: Current as of 12/9/2005 updated 2/6/06

(b) No person shall within the District of Columbia possess, with intent to use unlawfully against another, an imitation pistol, or a dagger, dirk, razor, stiletto, or knife with a blade longer than 3 inches, or other dangerous weapon.

[null and void]

So if you don't intend to use it a cutlass would be perfectly legal?

[goseminoles]

All Your Dirks Are Belong To Us.