The Immigration and Nationality Act has strict provisions to enforce its rules and ensure compliance. Agencies such as the U.S. Immigration and Customs Enforcement (ICE) are responsible for monitoring ports of entry and apprehending those without valid documentation. The USCIS may also initiate removal proceedings against anyone in the U.S. who violates immigration law. Such people may be deported and banned from entering the U.S. for a certain period or for life, depending on the nature of their violation. There are a few ways to stop deportation before and after a deportation order is issued. If you're in that position, consider reaching out to an immigration attorney to help you find an appropriate legal solution that could help you remain in the U.S.