‘Steward of designated material’ is a term used in Manitoba’s Packaging and Printed Paper Stewardship Regulation.
“steward of designated material” means
(a) the first person who, in the course of business or a prescribed activity in Manitoba, supplies a designated material to another person; or
(b) a person who, in the course of business or a prescribed activity in Manitoba, uses a designated material obtained in a supply transaction outside of Manitoba.
In short, a ‘steward of designated material’ is a company or person that supplies grain bags or twine into Manitoba. This could be a manufacturer, distributor, retailer, farm supply dealer, or other businesses.
Cleanfarms uses the term ‘Steward/First Seller’ as a short form for ‘steward of designated material.’ (The term ‘First Seller’ is used in a similar Regulation in Saskatchewan. Many grain bag suppliers do business in both provinces, so the terminology has been combined.)