The Child Labor Module (MTI) was conducted along with National Survey on Occupation and Employment (ENOE) in the fourth quarter of 2007. The MTI module is a joint effort of the Ministry of Labor and Social Welfare (Secretaría del Trabajo y Previsión Social - STPS) and the National Institute of Statistics and Geography (Instituto Nacional de Estadística y Geografía - INEGI) to generate information about economic and noneconomic activities of children, enabling the design and monitoring of public policies oriented to the attention of Mexican children.

The MTI's main objective is to have an updated database about the demographic and occupational characteristics of the population from 5 to 17 years old with an economic activity in the country (see technical sheet).