The Food and Drug Administration is giving more time for the public to comment on the agency’s approach to identifying high-risk foods.

First set to expire April 7, the comment period has been extended to May 22 of this year, according to an agency announcement published March 25.

The FDA is seeking comments and scientific data that will help to refine its approach, according to a news release. Under the 2011 Food Safety Modernization Act, the agency is required to identify high-risk foods for which additional record keeping requirements are appropriate and necessary so that they can be tracked during a foodborne illness outbreak, according to the release.

The release said the FDA plans to publish a list of these high-risk foods at the same time or before it issues a proposed rule outlining the record keeping requirements for the designated high-risk foods.

The draft approach to identify high-risk foods, published Feb. 4, is based on an valuation of chemical and microbial hazards combined with foods, according to the release. No specific foods or hazards are included in the draft methodological approach, according to the release.

The release said the FDA is inviting comments on alternative approaches for identifying high-risk foods, whether or not the criteria should be weighted equally, changes in the scoring system, and how foods should be categorized.