The Citizenship and Migration Board (CMB) was a government agency in Estonia under the Ministry of Internal Affairs that was in charge of enforcing regulations concerning immigration and nationality.

[1] In 2010, it was merged with other agencies and formed Police and Border Guard Board.

The CMB was the authority which issued the following Estonian travel documents: The CMB was responsible for processing applications and enquiries concerning Estonian citizenship.

The CMB was responsible for enforcing visa/residence permit regulations and for processing asylum/refugee requests.

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