in preparing home use instruction manuals, in addition to focusing on the needs of the lay user, manufacturers must comply with all applicable device regulations, including labeling and marketing clearance requirements. the following market clearance guidance provides a basic framework for that compliance. manufacturers may contact the appropriate division of the Office of Device Evaluation(ODE), CDRH, for a specific determination of whether or not a PMA supplement or 510(k) submission is required when a labeling change is made.