Certificate of no impediment (CNI) — explained for Turkish readers

A certificate of no impediment, or CNI, is issued by the local register office to a person living in England and Wales who intends to marry abroad. You give notice at the register office and, if no objection is raised within the statutory period, the CNI is issued. Turkish marriage offices ask a British citizen for it before a wedding in Türkiye, and it must first carry an FCDO apostille and then be translated by a translator registered with the Turkish Consulate.

The Turkish counterpart is the evlenme ehliyet belgesi, obtained from a nüfus müdürlüğü, and it serves the same purpose. The traffic is one-way, however: an English register office does not ask a Turkish national for an evlenme ehliyet belgesi when they give notice of marriage in England. The Turkish Consulate in London instead issues a no-impediment letter for Turkish citizens marrying in England.

The UK document is covered at UK certificate of no impediment translation into Turkish.