The Plan sought to achieve these aims by promoting the active participation of older persons in society in its member states. The contribution of the Plan towards an International Convention on the Rights of Older Persons can be seen in the placement of older people into the general context of international human rights law, establishing the groundwork for older persons to be seen as a protected group. The plan did not specifically refer to older persons as a specific protected group, implying that it was not meant as a declaration of rights, though it did acknowledge the commitment of member states to upholding the rights of all groups and older persons by extension. The plan was set for review after a 10 year period, in which states and NGOs such as the United Nations Population Fund were tasked with implementing the Plan. In October 2010, the United Nations General Assembly adopted Resolution 65/182 which established the "Open‐Ended Working group on Ageing for the purpose of strengthening the Human Rights of Older Persons" as a follow-up to the Madrid Plan. The OEWGA had a mandate to consider the existing international framework of the human rights of older persons and identify possible gaps and how best to address them. The OEWGA forms the primary forum for debate as to the adoption of a multilateral human rights treaty regarding the rights of older persons, as it focuses on the issues faced by older persons and recognizes gaps in the existing human rights framework. The OEWGA has had 8 sessions as of September 2017, and each of these sessions has aimed to clarify issues surrounding older persons rights and provide assistance to members in their obligations under the Madrid Plan. Before each session the OEWGA takes submissions from member states on their contributions towards older persons in society. In the first session select member states acknowledged the difficult position of older person's rights under the traditional international framework, due to the lack of a specific convention. Therefore, debate regarding the necessity of an international convention on the rights of older persons has been a feature of the OEWGA since its outset, which can be seen through the submissions of the member states. OEWGA has primarily focused on ways to improve the existing human rights framework, though NGOs and states such as Argentina have advocated for a human rights convention, stating in their first submission that:  ″There is no legally binding instrument to standardize and protect the rights of older persons... The argument is that the universal nature of international instruments should include the elderly. We all know that this does not happen because we live in an imperfect world. If the world were perfect we would not need any convention, and there is no discrimination.