In order to eliminate and prevent discrimination within the meaning of this Convention, the State Parties thereto undertake: (a) To abrogate any statutory provisions and any administrative instructions and to discontinue any administrative practices which involve discrimination in education; (b) To ensure, by legislation where necessary, that there is no discrimination in the admission of pupils to educational institutions; (c) Not to allow any differences of treatment by the public authorities between nationals, except on the basis of merit or need, in the matter of school fees and the grant of scholarships or other forms of assistance to pupils and necessary permits and facilities for the pursuit of studies in foreign countries; (d) Not to allow, in any form of assistance granted by the public authorities to educational institutions, any restrictions or preference based solely on the ground that pupils belong to a particular group; (e) To give foreign nationals resident within their territory the same access to education as that given to their own nationals.