Article 13 Reporting 1. Each State Party shall, within the first year after entry into force of this Treaty for that State Party, in accordance with Article 22, provide an initial report to the Secretariat of measures undertaken in order to implement this Treaty, including national laws, national control lists and other regulations and administrative measures. Each State Party shall report to the Secretariat on any new measures undertaken in order to implement this Treaty, when appropriate. Reports shall be made available, and distributed to States Parties by the Secretariat. 2. States Parties are encouraged to report to other States Parties, through the Secretariat, information on measures taken that have been proven effective in addressing the diversion of transferred conventional arms covered under Article 2 (1). 3. Each State Party shall submit annually to the Secretariat by 31 May a report for the preceding calendar year concerning authorized or actual exports and imports of conventional arms covered under Article 2 (1). Reports shall be made available, and distributed to States Parties by the Secretariat. The report submitted to the Secretariat may contain the same information submitted by the State Party to relevant United Nations frameworks, including the United Nations Register of Conventional Arms. Reports may exclude commercially sensitive or national security information. Article 14 Enforcement Each State Party shall take appropriate measures to enforce national laws and regulations that implement the provisions of this Treaty. Article 15 International Cooperation 1. States Parties shall cooperate with each other, consistent with their respective security interests and national laws, to effectively implement this Treaty. 2. States Parties are encouraged to facilitate international cooperation, including exchanging information on matters of mutual interest regarding the implementation and application of this Treaty pursuant to their respective security interests and national laws. 3. States Parties are encouraged to consult on matters of mutual interest and to share information, as appropriate, to support the implementation of this Treaty. 4. States Parties are encouraged to cooperate, pursuant to their national laws, in order to assist national implementation of the provisions of this Treaty, including through sharing information regarding illicit activities and actors and in order to prevent and eradicate diversion of conventional arms covered under Article 2 (1). 5. States Parties shall, where jointly agreed and consistent with their national laws, afford one another the widest measure of assistance in investigations, prosecutions and judicial proceedings in relation to violations of national measures established pursuant to this Treaty. 8 13-27217