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Wheat – Chapter 4
Official Grain Grading Guide

Export shipments

Export shipments can be commercially clean or not commercially clean.

Commercially clean

Shipments are defined as commercially clean when meeting the commercially clean specifications listed in the export grade determinant table upon following the Determination of commercially clean procedures described in this chapter.

Dockage is not reported for commercially clean shipments.

Note: For shipments of eastern wheat classes, commercially cleanliness specifications listed in the CWRS export grade determinant table are to be used.

Not commercially clean (NCC)

If any of the components exceed the allowable limits as defined in the tables, the shipment becomes not commercially clean, and dockage is assessed using procedures for primary samples.

Shipments, which do not meet the standards for commercial cleanliness, are referred to as not commercially clean. Such shipments are permitted only with the permission of the Canadian Grain Commission.

For samples representing not commercially clean shipments approved by the Canadian Grain Commission for shipment from terminal and transfer elevators, dockage is reported to the nearest

0.1% for samples representing commercially clean shipments loaded from a single terminal or transfer elevator
0.01% for composite samples representing shipments loaded from more than one terminal or transfer elevator

less a deduction of up to 0.2% to take into account the buildup of attritional material.

Grading

Wheat on export is graded using standard samples and export specifications. Where there are no export specifications, the primary specifications are used.