S.31 - Federal Government - A bill to amend the Immigration and Nationality Act to reduce fraud in certain visa programs for aliens working temporarily in the United States.

H-1B Visa Fraud Prevention Act of 2007 - Amends the Immigration and Nationality Act to revise employer and government requirements with respect to H-1B (specialty occupation) nonimmigrant aliens.

Increases labor condition application penalties.

Provides H-1B alien whistleblower protections.

Requires the Director of United States Citizenship and Immigration Services to submit to Congress a fraud risk assessment of the H-1B visa program.