Tulgana IV Space Traffic Control
The Tulgana IV Space Traffic Control was in charge of travel to and from the planet of Tulgana IV. It required all shuttles to have a landing code.

When the Yosemite was ferrying General K'orin to Tulgana IV in 2380, Ensign Brad Boimler spoke to a controller who gave landing code challenge "epsilon". ()
Federation agencies‎