33 CFR 402.6 - Volume Rebate Incentive program.
(a) To be eligible to the Volume Rebate Incentive program:
(1) A shipper/receiver in the Great Lakes/St. Lawrence Seaway System must submit to the Manager for approval, before June 30th of every season, the commodity, as defined under the Manager's commodity classification, for which a Volume Rebate is sought, the origin or destination of the commodity, and a proof of the maximum volume of the commodity the shipper/receiver has shipped over the last 5 years from that origin or to that destination.
(2) The shipper/receiver must already move the commodity, as defined under the Manager's commodity classification, through the Seaway at a minimum of 100,000 tonnes per season for the past five navigation seasons.