L-1 Visa (Intracompany Transferee) Reform Act of 2004

L-1 Visa (Intracompany Transferee) Reform Act of 2004 - Amends the Immigration and Nationality Act, with respect to L-1 visa (intracompany transferee) nonimmigrant aliens, to prohibit entry of an alien with specialized knowledge who will be stationed primarily at the worksite of an employer other than the petitioning employer or affiliate, parent, or subsidiary if: (1) the alien will be controlled and supervised principally by such unaffiliated employer; or (2) the alien's placement at the unaffiliated employer's worksite is essentially an arrangement to provide labor for such employer rather than the provision of a product or service for which specialized knowledge specific to the petitioning employer is necessary.

Eliminates the six-month requirement of prior continuous overseas employment for blanket petitions (thus subjecting all L-1 aliens to a one-year requirement).

Directs the Department of Homeland Security to maintain L-1 statistics.