Article 489 of Mexico’s Federal Labor Law lists what does not free the employer from liability for work risks. The first case is “Que el trabajador explícita o implícitamente hubiese asumido los riesgos de trabajo” (that the worker explicitly or implicitly assumed the work risks). The second is “Que el accidente ocurra por torpeza o negligencia del trabajador” (that the accident occurs through the worker’s clumsiness or negligence).
The third case is an accident caused by the imprudence or negligence of a co-worker or of a third person.