By Vicki Needham - 05/11/12 05:41 PM EDT
"The United States holds its agriculture industry to the highest standards of safety and is confident the WTO will agree that there is no justification for India's restrictions on U.S. exports," he said.
The United States requested formal consultations with India on March 7 and held further talks on April 16-17 without a resolution.
India is asserting it has the right to impose import restrictions on countries whenever they report outbreaks of a certain type of bird flu, the only type found in the United States since 2004.
WTO provisions allow member nations to adopt measures to protect human, animal or plant life or health.
But U.S. officials say India appears to have acted inconsistently with its obligations, including by failing to base its measures on international guidelines that would unfairly discriminate against imports from countries such as the United States.