i know N90
but i dont know any global four departure.
knowing the frequency i might tune in and have a listen
It could be a company-only chart..
I know that at KSNA a few years ago, they had a certain airline file and get cleared for the BKBAY departure, where there was no published FAA or Jepp chart by that name. The SID is no longer used, but it did exist for a certain airline. That may be what is happening here.
BL.