Article 33 of the Mexican Federal Labor Law
The waiver made by the workers of the accrued wages, indemnities and other benefits derived from the services rendered, regardless of the form or denomination given to it, is null and void.
Any agreement or settlement, in order to be valid, must be made in writing and contain a circumstantial relation of the facts that motivate it and of the rights included therein. It shall be ratified before the Conciliation Centers or the Court as the case may be, which shall approve it provided that it does not contain a waiver of the rights of the workers.
Paragraph amended by the Decree amending, adding and repealing various provisions of the Federal Labor Law, the Organic Law of the Federal Judiciary, the Federal Public Defender’s Office Law, the Law of the National Workers’ Housing Fund Institute and the Social Security Law, in matters of Labor Justice, Union Freedom and Collective Bargaining, published in the Official Gazette of the Federation on May 1, 2019.
When the agreement is entered into without the intervention of the authorities, the nullity may be claimed before the Court, only of that which contains a waiver of the rights of the workers, the rest of the agreed clauses remaining valid.
Paragraph added by the Decree amending, adding and repealing several provisions of the Federal Labor Law, the Organic Law of the Federal Judiciary, the Federal Public Defender’s Office Law, the Law of the National Workers’ Housing Fund Institute and the Social Security Law, regarding Labor Justice, Union Freedom and Collective Bargaining, published in the Official Gazette of the Federation on May 1, 2019.