10/30/2026
Via FSIS:
FSIS is implementing several measures, including food safety assessments focused on ready-to-eat (RTE) establishments, weekly data collection on Listeria risk factors, and expanded Listeria species testing.
Based on analysis, FSIS trained inspection personnel, piloted expanded sampling for food contact and non-food contact surfaces in RTE establishments, updated inspection tasks to target Listeria risk factors, and developed new data visualization tools to support earlier risk identification.
As a result, FSIS is building on the fiscal year (FY) 2026 pilot program conducted in the Alameda, Chicago, and Raleigh districts and will begin a phased implementation of the sampling across all nine districts in the coming months.
The national implementation uses the same swabbing procedures, lab methods, reporting, and follow-up actions already in place under the RLm and IVT programs.
What is changing? Like the pilot, the national implementation will add two food contact surface and two non-food contact surface sampling tasks to all existing RTE post-lethality exposed product samples (‘RTEPROD” in PHIS). These four swabs will help better understand the environmental conditions that lead to Lm contamination.
The swabs will be analyzed for Lm and non-Lm Listeria species, giving inspection teams more frequent, science-based checks of sanitation effectiveness and potential Listeria harborage sites.
Integrating swabs into the existing sampling tasks provides an expanded view into conditions on and around the processing line without creating duplicative steps or requiring additional product holds.
Our goal is prevention. Swabbing both food contact and non-food contact surfaces will strengthen FSIS’ ability to detect risks early and ensures decisions are based on complete, accurate data.
National implementation will begin rolling out in phases starting January 2027.
(Photo By CDC/Dr. Balasubr Swaminathan; Peggy Hayes (PHIL #2286) - Obtained from the CDC Public Health Image Library. This image was copied from wikipedia:en)