Two types immigration bonds
• Delivery Bond
An alien that is arrested by the Bureau of Immigration and Customs Enforcement and issued a Warrant of Arrest (Form I-205) and a Notice of Custody Conditions (Form I-286) may be eligible for a delivery bond. The amount of a delivery bond should be sufficient to ensure that the alien will appear for any future immigration proceedings.
• Voluntary Departure Bond
An alien who is allowed to depart the country voluntarily after being placed in removal proceedings (or in lieu of such proceedings) has been granted Voluntary Departure. The Immigration Judge may, and, in some cases, must, require that someone post a bond in an amount that will ensure that the alien departs the United States within the time specified.