False Personation of a U.S. Citizen (18 U.S.C. § 911). Illegal aliens often present themselves as U.S. citizens, an act punishable by up to five years in jail, a felony. This law is often cited in immigration prosecutions and may involve, for example, an alien claiming U.S. citizenship to his employer.
Fraud and False Statements (18 U.S.C. § 1001). It is common for illegal aliens to make false statements to the government or on official documents. An illegal alien violates this law when claiming to be a U.S. citizen on an I-9 Employment Eligibility form and faces a fine and up to five years imprisonment.
Social Security Fraud (42 U.S.C. § 408). This statute has been invoked where an illegal alien provided a false Social Security number for the purpose of acquiring a job, where an illegal alien used a fraudulent Social Security number for the purpose of acquiring a driver's license, and when an illegal alien used a Social Security card belonging to a citizen in order to obtain Section 8 housing, for example. Violation of this statute can result in a fine and/or imprisonment up to five years. The court can also require violators to provide restitution to the victims.