knowingly falsely make, issue, alter, forge, or counterfeit any official certificate or other official form or official mark;

knowingly utter, publish, or use as true any falsely made, issued, altered, forged, or counterfeited official certificate or other official form or official mark, or knowingly possess, without promptly notifying the Secretary or the representative of the Secretary, or fail to surrender to such a representative upon demand, any falsely made, issued, altered, forged, or counterfeited official certificate or other official form, or any device for making any official mark or simulation thereof, or knowingly possess any grain in a container bearing any falsely made, issued, altered, forged, or counterfeited official mark without promptly giving such notice;

knowingly cause or attempt (whether successfully or not) to cause the issuance of a false or incorrect official certificate or other official form by any means, including but not limited to deceptive loading, handling, weighing, or sampling of grain, or submitting grain for official inspection or official weighing or supervision of weighing knowing that it has been deceptively loaded, handled, weighed, or sampled, without disclosing such knowledge to the official inspection personnel before official sampling or official weighing or supervision of weighing;

alter any official sample of grain in any manner or, knowing that an official sample has been altered, thereafter represent it as an official sample;

knowingly use any official grade designation or official mark on any container of grain by means of a tag, label, or otherwise, unless the grain in such container was officially inspected on the basis of an official sample taken while the grain was being loaded into or was in such container or officially weighed, respectively, and the grain was found to qualify for such designation or mark;