(1) Failure to comply with any of the conditions laid down in this Code shall render an individual employment contract null and void.

(2) A declaration of invalidity of the individual employment contract shall have effects for the future.

(3) The invalidity of an individual employment contract may be remedied by the fulfilment of the relevant conditions laid down in this Code.

(4) Where one of the conditions of an individual employment contract becomes invalid due to the establishment of rights for the employee below the level prescribed by law, collective agreements or collective bargaining agreements, this condition is automatically replaced by the minimum relevant condition prescribed by law, agreement or contract.

(5) The invalidity of an individual employment contract shall be determined by a court decision.

(6) An employee who has worked under an individual employment contract declared null and void shall be entitled to remuneration for the work performed.