Immigration Marriage Fraud Amendments of 1986
Public Law 99-639 (Act of 11/10/86), which was passed in order to deter immigration-related marriage fraud. Its major provision stipulates that aliens deriving their immigrant status based on a marriage of less than two years are conditional immigrants. To remove their conditional status the immigrants must apply at an U.S. Citizenship and Immigration Services office during the 90-day period before their second-year anniversary of receiving conditional status. If the aliens cannot show that the marriage through which the status was obtained was and is a valid one, their conditional immigrant status may be terminated and they may become deportable.
Source: U.S. Citizenship and Immigration Services