CNFJ/CNRJ's area of responsibility extends from the southern tip of the Kamchatka peninsula to the northern tip of Taiwan and, the Singapore area of operations, and the Indian Ocean British Territory of Diego Garcia, but excludes the Korean peninsula.

Essentially, this means that all shore-based Naval forces in Japan are under the command and control of CNFJ/CNRJ.

However, ships and their personnel that are "forward deployed" to Japan (which essentially is their home port) are excluded because they are operationally assigned to United States Seventh Fleet.

On 28 January 1946 FLTLOSCAP was dissolved and Naval Activities, Japan (COMNAVJAP) was established under the command of Vice Admiral R. M. Griffin, who retained this command until 9 July 1948 when he was relieved by Vice Admiral Russell M.

[5] In March, 1952, the geographical boundaries of NAVFE were changed to exclude the Philippines, Marianas, Bonin and Volcano Islands.