Article 6 — Effective monitoring and reporting

1. Customs authorities, and, where relevant, competent authorities and regulatory authorities, the European Anti-Fraud Office (OLAF), the European Public Prosecutor’s Office (EPPO) and the European Union Agency for the Cooperation of Energy Regulators (ACER) shall ensure the effective monitoring of the provisions in Chapter II, and where necessary, make full use of their enforcement powers, and cooperate closely with other relevant national authorities, authorities from other Member States, Union authorities and the Commission 2. When exercising their powers, authorising authorities and customs authorities shall focus the enforcement on interconnection points, LNG facilities or transit pipelines where the risk of circumvention is high, for instance where imports arrive from third countries that also trade natural gas that originates in or is exported, directly or indirectly, from the Russian Federation or that export natural gas from production facilities which are partly owned by companies from the Russian Federation. Using the mechanism for cooperation between authorities pursuant to Article 7, authorities shall adapt their enforcement priorities where that is necessary to address potential circumvention practices identified during the implementation of this Regulation. The Commission, in cooperation with Member States, shall monitor the total volumes of natural gas imported via third countries in order to assess potential risks of circumvention of Articles 3 and 4.