19 CFR §12.114

If the EPA directs the port director to release the shipment of pesticides or devices, the shipment will be released to the consignee. If the EPA directs the port director to refuse delivery of the shipment, the shipment will be refused delivery and treated as a prohibited importation. The port director will cause the destruction of any shipment refused delivery and not exported by the consignee within 90-calendar days after notice of such refusal of delivery.