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Attributions of the Constitutional Tribunal are:
1. To exercise the control of constitutionality of the laws that interpret any precept of the Constitution, of the constitutional organic laws and of the norms of a treaty which concern matters belonging to the latter, prior to their promulgation;
2. To resolve concerning the questions of constitutionality of the original decisions adopted by the Supreme Court, the Courts of Appeal and the Qualifying Tribunal of Elections;
3. To resolve the questions concerning constitutionality which arise during the processing of the Bills of law or of constitutional reform and of the treaties submitted to the approval of the Congress;
4. To resolve the questions which arise concerning the constitutionality of a decree with the force of law;
5. To resolve the questions which arise concerning the constitutionality [of] the convocation to a plebiscite, without prejudice to the attributions which correspond to the Qualifying Tribunal of Elections;
6. To resolve, by the majority of its members in office, [on] the inapplicability of a legal precept having application in any measure that is taken before an ordinary or special tribunal, [having a] result contrary to the Constitution;
7. To resolve, by the majority of four-fifths of its members in office, [on] the unconstitutionality of a legal precept declared inapplicable in conformity with that provided in the previous Numeral;
8. To resolve the complaints in case the President of the Republic does not promulgate a law when he should do so or [when] he promulgates a text different from that which constitutionally corresponds;
9. To resolve [the questions] concerning the constitutionality of a decree or resolution of the President of the Republic which the Office of the Comptroller General has objected to [representar] as[,] in its opinion [estimar][,] unconstitutional, when it is required by the President in conformity with Article 99;
10. To declare the unconstitutionality of the organizations and of the movements or political parties, as well as the responsibility of the persons who have participated in the acts which motivated the declaration of unconstitutionality, in conformity with that provided in the sixth, seventh and eighth paragraphs of Numeral 15 of Article 19 of this Constitution. However, if the affected person is the President of the Republic or the President-elect, the declaration referred to will require, also, the agreement of the Senate adopted by the majority of its members in office;
11. To report to the Senate in the cases to which Article 53, Numeral 7, of this Constitution, refers;
12. To resolve the conflicts of competence which arise between the political or administrative authorities and the tribunals of justice, which do not correspond to the Senate [to resolve];
13. To resolve concerning the constitutional or legal ineligibilities [inhabilidades] which affect a person [from] being appointed Minister of State, [from] remaining in that post, or [from] performing other functions simultaneously;
14. To decide concerning the ineligibilities, incompatibilities and grounds for cessation [of] the responsibilities of the parliamentarians;
15. To qualify the ineligibility invoked by a parliamentarian in the terms of the final paragraph of Article 60 and decide concerning the renunciation of the responsibilities, and
16. To resolve concerning the constitutionality of the supreme decrees, whatever the alleged defect may be, including those that may be issued in the exercise of the independent regulatory power of the President of the Republic, when they concern matters that may be reserved to the law by mandate of Article 63.
In the case of Numeral 1, the Chamber of origin will forward to the Constitutional Tribunal the respective Bill within the five days following the [day] on which it is totally processed by the Congress.³
… (Art. 93)