under the Covenant. As the World Programme of Action concerning Disabled Persons states, “the ultimate responsibility for remedying the conditions that lead to impairment and for dealing with the consequences of disability rests with Governments”. 14 2. Means of implementation 13. The methods to be used by States parties in seeking to implement their obligations under the Covenant towards persons with disabilities are essentially the same as those available in relation to other obligations (see general comment No. 1 (Third session, 1989)). They include the need to ascertain, through regular monitoring, the nature and scope of the problems existing within the State; the need to adopt appropriately tailored policies and programmes to respond to the requirements thus identified; the need to legislate where necessary and to eliminate any existing discriminatory legislation; and the need to make appropriate budgetary provisions or, where necessary, seek international cooperation and assistance. In the latter respect, international cooperation in accordance with articles 22 and 23 of the Covenant is likely to be a particularly important element in enabling some developing countries to fulfil their obligations under the Covenant. 14. In addition, it has been consistently acknowledged by the international community that policy-making and programme implementation in this area should be undertaken on the basis of close consultation with, and involvement of, representative groups of the persons concerned. For this reason, the Standard Rules recommend that everything possible be done to facilitate the establishment of national coordinating committees, or similar bodies, to serve as a national focal point on disability matters. In doing so, Governments should take account of the 1990 Guidelines for the Establishment and Development of National Coordinating Committees on Disability or Similar Bodies. 15 3. The obligation to eliminate discrimination on the grounds of disability 15. Both de jure and de facto discrimination against persons with disabilities have a long history and take various forms. They range from invidious discrimination, such as the denial of educational opportunities, to more “subtle” forms of discrimination such as segregation and isolation achieved through the imposition of physical and social barriers. For the purposes of the Covenant, “disability-based discrimination” may be defined as including any distinction, exclusion, restriction or preference, or denial of reasonable accommodation based on disability which has the effect of nullifying or impairing the recognition, enjoyment or exercise of economic, social or cultural rights. Through neglect, ignorance, prejudice and false assumptions, as well as through exclusion, distinction or separation, persons with disabilities have very often been prevented from exercising their economic, social or cultural rights on an 14 World Programme of Action concerning Disabled Persons (see note 3 above), paragraph 3. 15 See note 8 above.