A/HRC/28/35 housing, education and water, in accordance with the obligations of States under international human rights law. As described above, when used as a floor and not a ceiling for protection, social protection floors can contribute significantly to gender equality and the realization of minimum essential levels of the rights to social security, food, health and education, especially for marginalized groups. 55. Human rights norms and social protection floors complement each other. The success of national social protection floors in achieving gender equality, respect for the minimum core of economic, social and cultural rights and protecting marginalized groups, such as children, older persons, persons with disabilities, informal workers and non-nationals, will depend on whether they are established and implemented according to human rights standards and principles. 56. The Social Protection Floor Initiative offers relevant policy guidance to put in practice several human rights obligations, including the realization of comprehensive social security systems. The Secretary-General therefore encourages States to consider putting in place comprehensive social protection systems and social protection floors that will contribute to the enjoyment and realization of human rights at national level. 16