The Republic Anti-Slavery Law was a law drafted and passed by the Galactic Senate of the Galactic Republic in 23 BBY that forbid the use of slaver workers by Republic corporations outside of Republic territories. Utapau Queen Sabé Arcadia, at the behest of the planet's Senator Malus Palpatine, was a principal supporter of the bill. Once it passed, the Trade Federation shipping cartel became outraged, as losing the right to use slaves hurt their corporate bottom line. In retaliation, the Federation blockaded Utapau, eventually invading it after one month of a blockade.