 The law stated that communities with newly granted citizenship should be enrolled in new tribes for voting in the Comitia Tributa.In 89 BCE the "Lex Plautia Papiria" followed the guidelines laid out in the "Lex Julia" for adding new tribes to the Comitia Tibuta for the new communities which were also granted citizenship.In the same year, the Lex Pompeia de Transpadanis granted Latin rights to the communities in Transpadana, the region north of the River Po as a reward for having sided with Rome during the war.