Proposed rule · 2026-05320

Medical Devices; Radiology Devices; Classification of Blood Irradiators

The Food and Drug Administration (FDA) is proposing to classify blood irradiator devices (product code MOT), unclassified preamendments devices, as follows: blood irradiator devices intended to prevent transfusion-associated graft-versus-host disease into class II (special controls) with premarket notification and blood irradiator devices intended to prevent metastasis into class III (premarket approval) to provide a reasonable assurance of safety and effectiveness of these devices. Elsewhere in this issue of the Federal Register, FDA is issuing a proposed order proposing to require the filing of a premarket approval application for blood irradiator devices intended to prevent metastasis.