The OS X Mavericks Cryptographic Modules, Apple OS X CoreCrypto Module v4.0 and Apple OS X CoreCrypto Kernel Module v4.0, require no setup or configuration to be in “FIPS Mode” for FIPS 140-2 compliance on devices running OS X Mavericks v10.9.
You may notice that the Hiragana input source (used in Japanese) is grayed out and cannot be selected when using Kotoeri. This happens in both the Input Sources menu icon, and, in the Input Sources pane of the Keyboard preferences.