Farm Use

I bought a 1 ton pickup with a 5300kg GVW. I also have a 1/2 ton with a 4000kg GVW. I have my half ton insured for farm use. In order to insure it for farm use all I had to do in the past was show the autoplan agent my property assessment that had my property classed as farm. When I went to insure the 1 ton similarly, the autoplan agent refused and said:

NEEDS TO APPLY FOR NATIONAL SAFETY CODE FOR FARM USE RC 001 FOR NOW.

I've looked this up and it seems to be referencing getting a driver's abstract related to commercial vehicles.

Is that the correct course of action for my situation?