(19)In view of the established cooperation between the Union and the CCNR since 2003 which has led to the establishment of the European Committee for drawing up Standards in Inland Navigation (CESNI) under the auspices of the CCNR, and in order to streamline the legal frameworks governing the professional qualifications in Europe, certificates of qualification, service record books and logbooks, issued in accordance with the Regulations for Rhine Navigation Personnel which lay down requirements that are identical to those of this Directive, should be valid on all Union inland waterways. Such certificates of qualification, service record books and logbooks issued by third countries should be recognised in the Union, conditional upon reciprocity.