Article 19 National agrarian programmes shall secure to the peoples concerned treatment equivalent to that accorded to other sectors of the population with regard to: (a) the provision of more land for these peoples when they have not the area necessary for providing the essentials of a normal existence, or for any possible increase in their numbers; (b) the provision of the means required to promote the development of the lands which these peoples already possess. Part III. Recruitment and Conditions of Employment Article 20 1. Governments shall, within the framework of national laws and regulations, and in co-operation with the peoples concerned, adopt special measures to ensure the effective protection with regard to recruitment and conditions of employment of workers belonging to these peoples, to the extent that they are not effectively protected by laws applicable to workers in general. 2. Governments shall do everything possible to prevent any discrimination between workers belonging to the peoples concerned and other workers, in particular as regards: (a) admission to employment, including skilled employment, as well as measures for promotion and advancement; (b) equal remuneration for work of equal value; (c) medical and social assistance, occupational safety and health, all social security benefits and any other occupationally related benefits, and housing; (d) the right of association and freedom for all lawful trade union activities, and the right to conclude collective agreements with employers or employers' organisations. 3. The measures taken shall include measures to ensure: (a) that workers belonging to the peoples concerned, including seasonal, casual and migrant workers in agricultural and other employment, as well as those employed by labour contractors, enjoy the protection afforded by national law and practice to other such workers in the same sectors, and that they are fully informed of their rights under labour legislation and of the means of redress available to them; (b) that workers belonging to these peoples are not subjected to working conditions hazardous to their health, in particular through exposure to pesticides or other toxic substances; (c) that workers belonging to these peoples are not subjected to coercive recruitment systems, including bonded labour and other forms of debt servitude;