IMPORTANT NOTICE FOR FOREIGN WORKERS IN POLAND: you cannot start work before the date shown in the permit, a work permit is given with regard to one employer, to the particular position and to the period shown in the permit, under the conditions defined in the permit, your employer must move for an extension of a work permit not later than 30 days before the end of the period for which the permit has been given, if you want to change your employer or take up a different kind of job, your new employer must move for a new permit to an appropriate Voivode (regional/voivodship office), if you did not sign a contract before starting work, demand the contract not later than on the day of commencing work, a contract must be in accordance with a work permit, The obligation of an employer: conclude contracts with you (including an employment contract) in a language which you understand, conduct trainings (including an occupational health and safety training) in a language