[1] Prior to the plebiscite, there was debate over whether the vote should be limited to the proposed regions of Carajás and Tapajós or include the entire state of Pará.

[2] On August 24, 2011, it was decided that the entire population of Pará would participate in the vote, requiring majority support statewide for the creation of the new states.

[3] In the calendar defined by the Superior Electoral Court, 2 September was the limit date for members of the Legislative Assembly of Pará, the Chamber of Deputies and the Federal Senate to manifest themselves to compose one of the fronts of the plebiscite (for or against the creation of the two states).

On 23 November, the electronic polls were sealed and on 10 December, the campaign through speakers and sound amplifiers was finished.

[4] The voters who had the intention to participate in the plebiscite had to regulate their situation in the Electoral Justice of Pará until 11 September.