Re: Has "NCC" Ever Been Explained On Screen?
Never explained on-screen. A popular theory is that NCC stands for "Naval Commissioning Code", a theory which was given some lip service by one of the writers on the commentary track of the 2009 movie.
I recall they said it was "Navy Civil Catalogue". It flows well with what The Star Trek Encyclopedia
says about it: "N" is for Navy, and "C" means "Civil"--that is, non-military.
"The saying implies but does not name the effective agency of its supposed utopia.... 'Needs and abilities' are, of course, subjective. So the operative statement may be reduced to 'the State shall take, the State shall give'."