50. However, regarding the moment to invoke them, it is also evident that this is in the petition, so that the processing of the said exceptions to the rule of the prior exhaustion of domestic remedies follows the course of the petition. III. THE REGULATIONS 51. The foregoing also includes the Rules of Procedure of the Commission itself when regulating the admissibility procedure of the petition lodged before the Commission and, therefore, reflects its interpretation of Article 46 of the Convention. 54 This procedure differentiates between the lodging of the petition and its initial review, the forwarding of the petition to the State, the State’s response, the observations of the parties and, lastly, the decision on its admissibility. A. Initial review by the Commission. 52. Therefore, the content of Article 26 of these Rules of Procedure must be considered and they establish: “Initial Review. 1. The Executive Secretariat of the Commission shall be responsible for the study and initial processing of petitions lodged before the Commission that fulfill all the requirements set forth in the Statute and in Article 28 of these Rules of Procedure. 2. If a petition or communication does not meet the requirements set for in these Rules of Procedure, the Executive Secretariat may request the petitioner or his or her representative to fulfill them. 3. If the Executive Secretariat has any doubt as to whether the requirements referred to have been met, it shall consult the Commission.”55 53. Meanwhile, Article 27 of this text establishes that: ”Condition for Considering the Petition. The Commission shall consider petitions regarding alleged violations of the human rights enshrined in the American Convention on Human Rights and other applicable instruments, with respect to the Member States of the OAS, only when the petitions fulfill the requirements set forth in those instruments, in the Statute, and in these Rules of Procedure.”56 54. Meanwhile, Article 28(8) of the said Rules of Procedure establishes that: “Requirements for the Consideration of Petitions. Petitions addressed to the Commission shall contain the following information: … any steps taken to exhaust domestic remedies, or the impossibility of doing so as provided in Article 31 of these Rules of Procedure.”57 55. Attention should be drawn to the fact that Article 29(1) and (3) of this instrument reiterates the content of Article 26(1) and (3): “Initial Processing . 1. The Commission, acting initially through the Executive Secretariat, shall receive and carry out the initial processing of the petitions presented. Each petition shall be registered, the date of receipt shall be recorded on the petition itself and an acknowledgement of receipt shall be sent to the petitioner. The Rules of Procedure in force at this time were adopted on March 18, 2013, and entered into force on August 1 that year. Since the 2006 Rules of Procedure were in force when the petition was lodged, the equivalent articles are indicated in footnotes to the corresponding articles of the Rules of Procedure currently in force. 54 55 Art. 26. 56 Art. 27. 57 Art. 28 (h). 14