8. This article shall not affect the obligations entered into under any other applicable treaty, bilateral or multilateral, or any other applicable operational agreement or arrangement that governs, in whole or in part, the return of persons who have been the object of conduct set forth in article 6 of this Protocol. IV. Final provisions Article 19. Saving clause 1. Nothing in this Protocol shall affect the other rights, obligations and responsibilities of States and individuals under international law, including international humanitarian law and international human rights law and, in particular, where applicable, the 1951 Convention2 and the 1967 Protocol3 relating to the Status of Refugees and the principle of non-refoulement as contained therein. 2. The measures set forth in this Protocol shall be interpreted and applied in a way that is not discriminatory to persons on the ground that they are the object of conduct set forth in article 6 of this Protocol. The interpretation and application of those measures shall be consistent with internationally recognized principles of non-discrimination. Article 20. Settlement of disputes l. States Parties shall endeavour to settle disputes concerning the interpretation or application of this Protocol through negotiation. 2. Any dispute between two or more States Parties concerning the interpretation or application of this Protocol that cannot be settled through negotiation within a reasonable time shall, at the request of one of those States Parties, be submitted to arbitration. If, six months after the date of the request for arbitration, those States Parties are unable to agree on the organization of the arbitration, any one of those States Parties may refer the dispute to the International Court of Justice by request in accordance with the Statute of the Court. 3. Each State Party may, at the time of signature, ratification, acceptance or approval of or accession to this Protocol, declare that it does not consider 2 3 64 United Nations, Treaty Series, vol. 189, No. 2545. Ibid., vol. 606, Nos. 8791.