Farmers must now sign a declaration stating the grain they deliver is an eligible variety for the class they're delivering into.

The new protocol is the result of a deal struck last year between the Canadian Wheat Board and Western Grain Elevator Association.

The new rules also require retention and testing of elevator samples to ensure delivery accuracy.

In addition, those who misrepresent grain may be liable to pay for losses incurred.

Association Executive Director Wade Sobkowich says the goal is to limit the chance of a grain shipment being contaminated by an ineligible variety.

He has not heard any negative feedback about the new rules, and feels it's because growers understand why they are necessary.

Sobkowich says the new protocol will be a permanent fixture until technology is developed which would allow varietal type to be determined at the elevator.