FDA Import Registration - Companies often use a Certificate of FDA Registration that lists their FDA registration number as proof that the facility has complied with this rule by registering with FDA. There are instances when some companies and their products can be refused under the prior notice ACT. If a foreign manufacturer who is not registered with FDA sells an article of food, imports or offers to import it, then the item of food can be refused under section 801 of the ACT of prior notice. Similarly, if registration is required and and the correct registration number of the foreign manufacturer is not submitted then the facility is considered incomplete for the purposes of prior notice.