What it is:
A certificate of no impediment (abbreviated as CNI or CONI) is a document that states that you can legally enter a civil partnership or marriage abroad. It shows that there is no objection to the proposed marriage. 
Frequently used for:
A certificate of no impediment is required when British nationals are getting married abroad.
Original or copy:
Only the original document can receive an apostille certificate.
Some countries may not require a certificate of no impediment. For instance, it might not be necessary when getting married in another Commonwealth country when you are a British national.
Suppose you have lost your certificate of no impediment. In that case, you can replace it from your local General Register Office, GRO (this is where you will also receive your marriage certificate, full birth certificate, and death certificate.)
How much does it cost?
A standard FCDO apostille for a certificate of no impediment starts from £79.
However, our apostille services will vary depending on the services you select, such as:
- Same-day service
- Notary and solicitor certification
- Embassy attestation
How to order:
A straightforward apostille for a UK certificate of no impediment can be ordered online. You can choose additional options on the order page. If you are unsure, please call our office and speak to one of our experts.