Misappropriation of local plant genetic resources through the plant variety protection system (PVP) is a major concern for developing countries. Several developing countries such as India (2001), Thailand (1999), Malaysia (2004) and Egypt (2002) implement a disclosure obligation in their national PVP legislation. The obligation requires an applicant seeking PVP to disclose information about genetic material used in the development of the plant variety for which PVP protection is sought i.e. provide evidence that breeding material has been lawfully obtained, require applicant to show prior informed consent of the farmers/communities who have developed/conserved the materials has been obtained and compliance with benefit sharing requirements. Disclosure facilitates identification of farmers and local communities that should be entitled to benefit sharing payments. Disclosure obligation supports Article 9.1 of ITPGRFA which recognizes the historical and present contribution of local, indigenous communities and farmers and furthers implementation of Article 9.2(a) and (b) of the ITPGRFA. A challenge in implementation is the UPOV system which does not recognize or allow countries to institute disclosure obligations in national PVP law, although a prerequisite to further implementation of Farmers’ Rights. As such, several countries have opted for alternative sui generis PVP systems that incorporate disclosure obligation.