Marriage certificate Attestation: Certificate of Marriage needs to be attested to be used in a Foreign Country for any purpose – Basically for Immigration purpose. USA issued marriage certificate should be legalized in order to use it for any purpose in UAE. 
USA issued Marriage certificate – UAE Legalization :
* To apply a UAE residence visa for family – Certificate of marriage attestation in required 
* The UAE government has zero tolerance on illegal immigration – So the UAE government provides residence visa upon verifying the genuineness of the Marriage certificate by the process of Attestation
* To use a USA issued Marriage certificate in UAE for any purpose, the certificate needs to be acknowledged / Stamped with the following authorities from both USA and UAE – As attestation is a process of two end legalization
The USA issued Marriage certificate needs to be stamped with :
. Notary public
. Secretary of State 
. Department of State 
The time duration differs according to the service options and packages, Genius Attestation services –  Global Leader in attestation service – Offers an express service for USA issued Marriage certificate attestation.
Genius Attestation services is a for sure reference for attestation requirement.