Article 426 Federal Labor Law
TITLE SEVEN. Collective Employment Relationships · CHAPTER VI. Collective modification of working conditions
Current text · last reform published in the Official Gazette of the Federation (DOF) on 14 May 2026
The labor unions of employees or the employers may request of the Courts the modification of the working conditions contained in the collective employment contracts or in the contract-laws:
I.When there are economic circumstances that justify it; and
II.When the rise in the cost of living originates an imbalance between capital and labor.
The request shall conform to the provisions of Articles 398 and 419, section I, and shall be processed in accordance with the provisions for collective conflicts of an economic nature.