Unless otherwise provided in the bilateral or multi-lateral agreements to which Turkey is a party, working permission for a definite period of time is given to be valid for at most one year, taking into consideration the situation in the business market, developments in the labour life, sectorial and economic conjuncture changes regarding employment, according to the duration of residence permit of the foreigner and the duration of the service contract or the work, to work in a certain workplace or enterprise and in a certain job.