The Food and Drug Administration (FDA) is responding to objections and is denying the requests that it has received for a hearing on the final rule that amended the food additive regulations to authorize the use of a machine source of high energy x-rays to inspect cargo containers that may contain food. After reviewing the objections to the final rule and the requests for a hearing, the agency has concluded that the objections do not raise issues of material fact that justify a hearing or otherwise provide a basis for revoking or modifying the amendment to the regulation.