Incorporating the Union Jack into the design is one option under consideration.
It would allay farmers’ fears of the logo being used by other countries producing to the British Farm Standard.
Head of food and farming at the NFU, Robin Tapper, said: “We know there is considerable concern that the little red tractor could be put on produce from other EU countries.
“Technically this is the case, but the reality is that no continental supplier has accreditation. Retailers have always supported us 100% and it’s up to them to decide what products to put the tractor on - they only want the logo on British products.”
Meanwhile the tractor’s Promise Campaign, which aims to bring farmers closer to the consumer, is nearing its final stages. Tapper said there had been a big response to a questionnaire asking for “promises” to appear on food labels, such as ‘I promise to sow grass between my crops so fertiliser stays where I put it’. Retailers are being consulted.