Imperial Order D6-66 was a law of the Galactic Empire that required all spaceports to have time-lock devices. This order even reached out to Outer Rim worlds, such as Tatooine.

Sources[]

• Inside the Worlds of Star Wars Trilogy (First mentioned) (As Imperial order D6-66)
• Star Wars: Complete Locations
• The Complete Star Wars Encyclopedia (First identified as Imperial Order D6-66)