According to the provisions of Government Ordinance no. 27/2011 on road transport, he drivers performing road transport of dangerous goods must be issued a professional certificate. For the recognition of the of professional certificate of the drivers performing road transport of dangerous goods, the nationals of EU member states, EEA or Swiss Confederation member states, holders of a certificate of professional competence of drivers performing road transport of dangerous goods (ADR) shall submit an application form and the certificate of professional competence in copy (two-sided, front and back sides). The Romanian Road Transport Authority - ARR shall contact the issuing authority of the EU member state in order to check the authenticity and validity of the respective certificate and, according to its answer, shall notify the applicant. Please, note that the sooner the issuing authority answers, the sooner the applicant shall be notified. Any person who considers himself harmed in its right or a legitimate interest by a public authority through administrative acts or failure to resolve a claim, have the right to appeal the Administrative Court, according to the Law 544/2004 on administrative contentious, as further amended and completed.