1.Member States shall ensure that there are effective mechanisms through which seasonal workers may lodge complaints against their employers directly or through third parties which have, in accordance with the criteria laid down by their national law, a legitimate interest in ensuring compliance with this Directive, or through a competent authority of the Member State when provided for by national law.
2.Member States shall ensure that third parties which have, in accordance with the criteria laid down by their national law, a legitimate interest in ensuring compliance with this Directive, may engage either on behalf of or in support of a seasonal worker, with his or her approval, in any administrative or civil proceedings, excluding the procedures and decisions concerning short-stay visas, provided for with the objective of implementing this Directive.
3.Member States shall ensure that seasonal workers have the same access as other workers in a similar position to measures protecting against dismissal or other adverse treatment by the employer as a reaction to a complaint within the undertaking or to any legal proceedings aimed at enforcing compliance with this Directive.