Amends the criminal illegal-entry statute (8 U.S.C. 1325) to raise penalties and to add a distinct provision for visa overstays. The bill defines a "visa overstay" as failing to maintain a nonimmigrant status for an aggregate of 10 days, and it makes both first and repeat overstays subject to civil fines and criminal penalties (including fines and possible imprisonment). The change expands the range of punishments available for people who remain in the United States after their nonimmigrant status lapses and increases potential enforcement exposure for nonimmigrant visa holders.