Language and the use of graphic representation are also important considerations which will be dictated by regional and local factors. The promotional effect of packaging should not be underestimated. Labelling Information on the label should fulfil both the legal requirements of 'truthful labelling' and provide evidence of certification, where appropriate, as well as technical information about the product. Normally there will be a company label plus the official tag if the seed has been certified. The legal requirements vary from one country to another but usually state not only the technical information that should appear but print size, label size and colour.
Colour coding is used for certification tags to denote the different generations.
Labels should also be made of materials resistant to damage and have secure fixings. It is normal practice to place an additional label in the pack in case the one on the outside becomes detached. Product leaflets are also frequently included as a service to farmers.