Reformas a la Ley del Seguro Social, en concordancia con la Ley Federal del Trabajo.

As a result of the continuous and profound changes that have occurred in the world, and especially in the labor market, de facto, new ways of working relationships that do not always conform to traditional standards established have evolved in the current legal system in Mexico. Originated from this new social dynamic in labor relations, and after extensive debate, the Mexican Congress approved the resolution amending, supplementing and repealing various provisions of the Federal Labor Act, published in the Mexico's Official Journal of the Federation (DOF) on November 30, 2012, to be in force the next day so that, since December 1, 2012, that law regulates new types of contracts: probationary, of initial training, and seasonal contracts; outsourcing, as well as a new type of working day: per time unit. [ABSTRACT FROM AUTHOR]