<Li> which has a specific quality, goodwill or other characteristic property, attributable to its geographical origin, </Li> <Li> at least one of the stages of production, processing or preparation takes place in the area . </Li> <P> In other words, to receive the PGI status, the entire product must be traditionally and at least partially manufactured (prepared, processed or produced) within the specific region and thus acquire unique properties . </P> <P> The TSG quality scheme aims to provide a protection regime for traditional food products of specific character . Differing from PDO and PGI, this quality scheme does not certify that the protected food product has a link to specific geographical area . </P>

Which of the following is the length of certification for any aop