Article 39-C Federal Labor Law
TITLE TWO. Individual Employment Relationships · CHAPTER II. Duration of employment relationships
Current text · last reform published in the Official Gazette of the Federation (DOF) on 14 May 2026
The employment relationship with a trial period or initial training period shall be recorded in writing, guaranteeing the social security of the employee; otherwise it shall be understood that it is for an indeterminate time, and the social security rights of the employee shall be guaranteed.