PITTSBURGH -- After repeated requests by Congress and consumer groups, the U.S. Department of Agriculture finally agreed to begin listing retail stores that receive meat and poultry products involved in Class I recalls-those of the most serious concern to public health.

The USDA was criticized earlier this year for refusing to reveal the names of stores and schools that sold and used beef recalled by Westland/Hallmark Meat.

The agency cited privacy concerns for not releasing names.

The new policy goes into effect next month.

The USDA will post on its Web site a list of retail stores that receive products subject to Class I recalls within three to 10 business days of issuing the recall release.

A Class I recall is one that involves a reasonable probability of serious health consequences or death for those with weakened immune systems.

Retail stores include supermarkets or other grocery stores, convenience stores, meat markets, wholesale clubs and supercenters.