If your IT organization uses the services of an international technology outsourcer –  i.e., Infosys, Wipro, Tata -– then you’ll probably find this report by Network World of interest.

According to the magazine’s Michael Cooney, earlier this month two U.S. senators mailed letters to nine international outsourcing companies “demanding that they explain their use of the H-1B program.”

The senators, Republican Chuck Grassley of Iowa and Democrat Dick Durbin of Illinois, are concerned about alleged fraud and abuse of the H-1B visa program and are seeking information from the nine companies regarding their use of it, according to Network World.

The H-1B visa allows companies in the U.S. to hire and employ skilled foreign workers, including IT pros, for a period of up to six years. The maximum number of H-1B visas issued per year currently stands at 65,000, but exact figures are difficult to determine thanks to various requirement exemptions.

Besides Infosys, Wipro and Tata, the other companies that received letters are Patni, Satyam, Larsen & Toubro, Mphasis, Tech Mahindra Americas and I-flex, according to Network World. The inquiry by the two senators comes as congress and President Bush are attempting wider reforms to U.S. immigration policy.

Check out the full article here, which includes an excerpt of the letter sent to Infosys by the senators.