Marriage in a legal sense is the action that encompasses the criteria for generally a male and female to legally form legal union within one household. Marriage ceremony must be performed by someone who is qualified by law to perform one, this includes: a judge, a justice of the peace, a minister, a priest, a rabbi, and other person with similar official position. The criteria a couple must meet in order to get married varies from state to state. The standard youngest age at which both components of a couple can get married without parental consent is 18 with the exception of Wyoming and Rhode Island whose laws require 16 years of age for girls. Another exception to the standard age at which marriage can occur without parental consent is Mississippi with 17 years of age for boys and 15 years of age for girls. Marriages that do not meet the age requirements cannot be annulled. All states require licensing and about of a third of states require blood tests to check for venereal disease before marriage. Other States have a minimum of a five day waiting period while the license is in processing.