A US delegation this week failed to reach a new agreement on poultry imports to Russia and is leaving the country to obtain further information requested by Moscow, the US Embassy said on Tuesday, reports the Russia Journal.
An embassy spokesman said there were remaining issues to clarify "that require additional information from our side."
The Russian Agriculture Ministry has warned that it will ban poultry imports from the United States beginning on 1 August without new veterinary certificates, saying previous certificates will only be accepted until 31 July.
Washington has lobbied for the deadline to be pushed back to 1 October.
The Russian government imposed a ban on US poultry imports in March, citing concerns about sanitary conditions at US plants and cases of salmonella in imported chicken. The ban was lifted a month later, after the United States promised to tighten export controls, but new bureaucratic hurdles have delayed a full resumption of imports.