E/C/12/1999/5 page 6 19. Violations of the right to food can occur through the direct action of States or other entities insufficiently regulated by States. These include: the formal repeal or suspension of legislation necessary for the continued enjoyment of the right to food; denial of access to food to particular individuals or groups, whether the discrimination is based on legislation or is pro-active; the prevention of access to humanitarian food aid in internal conflicts or other emergency situations; adoption of legislation or policies which are manifestly incompatible with pre-existing legal obligations relating to the right to food; and failure to regulate activities of individuals or groups so as to prevent them from violating the right to food of others, or the failure of a State to take into account its international legal obligations regarding the right to food when entering into agreements with other States or with international organizations. 20. While only States are parties to the Covenant and are thus ultimately accountable for compliance with it, all members of society - individuals, families, local communities, non-governmental organizations, civil society organizations, as well as the private business sector - have responsibilities in the realization of the right to adequate food. The State should provide an environment that facilitates implementation of these responsibilities. The private business sector – national and transnational - should pursue its activities within the framework of a code of conduct conducive to respect of the right to adequate food, agreed upon jointly with the Government and civil society. Implementation at the national level 21. The most appropriate ways and means of implementing the right to adequate food will inevitably vary significantly from one State party to another. Every State will have a margin of discretion in choosing its own approaches, but the Covenant clearly requires that each State party take whatever steps are necessary to ensure that everyone is free from hunger and as soon as possible can enjoy the right to adequate food. This will require the adoption of a national strategy to ensure food and nutrition security for all, based on human rights principles that define the objectives, and the formulation of policies and corresponding benchmarks. It should also identify the resources available to meet the objectives and the most cost-effective way of using them. 22. The strategy should be based on a systematic identification of policy measures and activities relevant to the situation and context, as derived from the normative content of the right to adequate food and spelled out in relation to the levels and nature of State parties’ obligations referred to in paragraph 15 of the present general comment. This will facilitate coordination between ministries and regional and local authorities and ensure that related policies and administrative decisions are in compliance with the obligations under article 11 of the Covenant. 23. The formulation and implementation of national strategies for the right to food requires full compliance with the principles of accountability,