I have an organization called the United States department of lolicon my question is is the term United States department used for government only or can non government use it?

I have an organization called the United States department of lolicon my question is is the term United States department used for government only or can non government use it?
State and federal agencies' names are not registered or copyrighted, so anyone can use them. However, if the user implies or represents that it is a real state or federal agency and tries to obtain money or other valuable assets, including personal information, that is fraud and larceny, and illegal. Use of the mails with that name for an illegal purpose is a separate criminal violation.