(1) When performing the works of different qualification categories, the work of the remunerated employees per unit of time is remunerated after the higher qualification work.

(2) The work of the employees remunerated in the agreement is remunerated according to the tariffs of the work performed. In cases where, in connection with the specificity of production, employees working on the agreement are required to perform work charged at a lower level in relation to the categories of qualification granted to them, the employer is obliged to pay the difference between the categories of qualification. .

(3) The norm regarding the payment of the difference between the qualification categories provided in par. (2) shall not apply in the cases when, by virtue of the production specifics, the performance of works of various qualifications is related to the permanent obligations of the employee.