There's also an exemption for farm-saved seed, which is where you've used the seed and a farmer is then able, as a right, to use it in the subsequent year if that seed is available on their property. It also defines what's called EDV—essentially derived variant—which means a new variant doesn't have to look exactly like the former species. It can have other scientific differences, but it doesn't have to exhibit the importin such as cosmetic features or how it looks that differentiates it from another variety. 