Article 690 Federal Labor Law
TITLE FOURTEEN. Labor Procedural Law · CHAPTER II. On Capacity, Standing and Legitimation
Current text · last reform published in the Official Gazette of the Federation (DOF) on 14 May 2026
The persons that may be affected by the resolution issued in a conflict may intervene in it, proving their legal interest therein, or be called to trial by the Court.
The third interested parties in a trial may appear or be called to it until before the holding of the preliminary hearing in the case of the ordinary individual procedure and of trial in the other cases, to state in writing what is proper to their right. The Court, without suspension of the procedure, shall issue the respective order, in order that the third interested party be served with the writings of claim and its answer so that within the ten days following the date on which he/she is notified personally, he/she presents the writing in which he/she states what is proper to his/her right; in said writing, in addition to proving his/her legal capacity, he/she must offer the evidence that corresponds to his/her interest.
The third interested parties that appear or are called to the ordinary procedure provided in chapter XVII of this Title of this Law shall be subject to what is established in said procedure.
The party that requests that a third interested party be called must express the motive and circumstance for which he/she must be called to trial and demonstrate the reasons for which he/she attributes such character to him/her.