Russian authorities have raised questions regarding a new trade agreement allowing imports of U.S. chicken, reports  U.S. officials are working to address the concerns.

The technical issues, voiced by Russian officials, threaten to halt trade only weeks after it resumed. In the past two weeks, Russia had approved nearly 70 U.S. poultry establishments as eligible exporters. A new agreement allows U.S. poultry exporters to use certain pathogen-reduction treatments rather than chlorine.

“We are monitoring the situation and working with our industry to ensure that the terms of the agreement are fulfilled,” U.S. Trade Representative spokeswoman Carol Guthrie said in an e-mail.

The National Chicken Council said in a statement, “We hope these matters can be resolved speedily and are awaiting further clarification from the U.S. government.”