Free Trade Zone
From Wookieepedia, the Star Wars wiki.
The Free Trade Zone was an area of untaxed trading areas in the Mid and Outer Rims, often used by the Trade Federation in their business. Most likely the Association of Free Trade Worlds was from this zone. When the Galactic Republic began demanding taxes on the Trade Zone, the Federation, at Sidious's wishes, began the Invasion of Naboo. The Free Trade Petition, introduced as a "treaty", was used to lift the taxation.
