No. Nebraska certification or residence is not needed as long as the minister is authorized to perform marriage ceremonies by the denomination to which he or she belongs.
Every judge, retired judge, or clerk magistrate, and every preacher of the gospel authorized by the usages of the church to which he or she belongs to solemnize marriages, may perform the marriage ceremony in this state. ’42-108. If the marriage is consummated with belief of the parties that they have been joined in marriage, the validity of the marriage is not affected by any want of jurisdiction or authority of a supposed minister, ’42-114. However, if any person undertakes to join others in marriage, knowing that he or she is not authorized to do so or knowing of a legal impediment to the marriage, he or she shall be guilty of a Class I misdemeanor. ’42-113.