Article 903 Federal Labor Law

Collective conflicts of an economic nature may be raised by the labor unions holding the collective employment contracts, by the majority of the employees of a company or establishment, provided that the professional interest is affected, or by the employer or employers, by means of a written claim, which shall contain:

I.Name and address of the party promoting and the documents that justify its legal standing;

II.Exposition of the facts and causes that gave origin to the conflict; and

III.The claims of the promoting party, clearly expressing what is requested.