(b) Restrict free choice of remunerated activity in accordance with its legislation concerning recognition of occupational qualifications acquired outside its territory. However, States Parties concerned shall endeavour to provide for recognition of such qualifications. 3. For migrant workers whose permission to work is limited in time, a State of employment may also: (a) Make the right freely to choose their remunerated activities subject to the condition that the migrant worker has resided lawfully in its territory for the purpose of remunerated activity for a period of time prescribed in its national legislation that should not exceed two years; (b) Limit access by a migrant worker to remunerated activities in pursuance of a policy of granting priority to its nationals or to persons who are assimilated to them for these purposes by virtue of legislation or bilateral or multilateral agreements. Any such limitation shall cease to apply to a migrant worker who has resided lawfully in its territory for the purpose of remunerated activity for a period of time prescribed in its national legislation that should not exceed five years. 4. States of employment shall prescribe the conditions under which a migrant worker who has been admitted to take up employment may be authorized to engage in work on his or her own account. Account shall be taken of the period during which the worker has already been lawfully in the State of employment. Article 53 1. Members of a migrant worker’s family who have themselves an authorization of residence or admission that is without limit of time or is automatically renewable shall be permitted freely to choose their remunerated activity under the same conditions as are applicable to the said migrant worker in accordance with article 52 of the present Convention. 2. With respect to members of a migrant worker’s family who are not permitted freely to choose their remunerated activity, States Parties shall consider favourably granting them priority in obtaining permission to engage in a remunerated activity over other workers who seek admission to the State of employment, subject to applicable bilateral and multilateral agreements. 129