This means that although - in principle - the Mexican courts and judges remain subject to the observance and application of domestic law, when the Mexican State has ratified an international treaty such as the American Convention, they, as part of the State apparatus, are also subject to it. Therefore, they are obligated to ensure that the effects of its provisions are not impaired by the application of laws contrary to its object and purpose, through the exercise of conventionality control between domestic legal provisions and the American Convention on Human Rights; and any interpretation of that Convention made by the Court, as the final interpreter. (Emphasis added). 81. The above standard is reflected in Thesis XI.1º.A.T.47 K, with the following title and text: 114 CONVENTIONALITY CONTROL AT THE DOMESTIC LEVEL. MEXICAN COURTS ARE REQUIRED TO EXERCISE IT. In matters of human rights, the courts of the Mexican State should not limit themselves solely to applying local laws, but also the Constitution, and international treaties or conventions in accordance with the jurisprudence of any of the international courts that interpret treaties, pacts, conventions or agreements signed by Mexico. This requires them to exercise conventionality control between domestic and supranational legal standards, which implies abiding by and applying legislative and any other measures in their jurisdiction to ensure respect for the rights and guarantees, through policies and laws that protect them. (Emphasis added). 82. Likewise, the Fourth Collegiate Court on Administrative Matters of the First Circuit, sitting in the Federal District, upon deciding the direct amparo 505/2009, on January 21, 2010, upheld the Thesis I.4º.A.91 K, with the following title and text: 115 CONVENTIONALITY CONTROL. MUST BE EXERCISED BY THE JUDGES OF THE MEXICAN STATE IN MATTERS SUBMITTED TO THEIR CONSIDERATION IN ORDER TO ENSURE THAT DOMESTIC LAWS DO NOT CONTRAVENE THE OBJECT AND PURPOSE OF THE AMERICAN CONVENTION ON HUMAN RIGHTS. The Inter-American Court of Human Rights has issued standards in the sense that when a State, in this case Mexico, has ratified an international treaty such as the American Convention on Human Rights, its judges, as part of the State apparatus, must ensure that the provisions contained therein are not impaired or limited by domestic rules that contravene its object and purpose. Therefore, they must exercise "conventionality control" between the provisions of domestic law and the Convention itself, taking into account not only the treaty but also the interpretation thereof. This is important for the organs responsible for judicial functions, since they must try to suppress, at all times, practices that tend to deny or restrict the right of access to justice. (Underlining added). 114 Published in Semanario Judicial de la Federación y su Gaceta, Ninth Period , TCC, Tome XXXI, May 2010, p. 1932. 115 Published in Semanario Judicial de la Federación y su Gaceta, Ninth Period , TCC, Tome XXXI, March 2010, p. 2927. 31