FDA 2026 Human Factors Guidance: Category 1, 2, 3 Submission Strategy[GeXPs26-0720EN]
On May 28, 2026, the U.S. Food and Drug Administration (FDA) issued its final guidance, Content of Human Factors Information in Medical Device Marketing Submissions . The guidance explains how manufacturers should determine the level of human factors information to include in 510(k), De Novo, PMA, and HDE submissions. The central question is not whether every device needs a new human factors validation test. It is whether the proposed device, its users, its use environment, or its user interface introduces or affects critical tasks—and whether existing evidence is sufficient to support the submission. For medical device manufacturers, regulatory affairs teams, design engineers, and brand owners, the practical task is to determine the correct Human Factors Submission Category, document the reasoning, and submit evidence that is proportionate to the actual use-related risk. Executive Summary The framework is based on device modifications, critical tasks, the use-related ...