Article 39-A of Mexico’s Federal Labor Law allows a periodo a prueba, a trial period, in employment relationships of indefinite length or longer than 180 days. It may last no more than 30 days. For management positions and for specialized technical or professional work, it may be extended to 180 days. If the worker does not show the required skills, the employer may end the relationship without liability.
Article 39-B adds a separate relationship for initial training. It may last no more than three months, or up to six months for management and specialized technical or professional positions.