As a consequence of the neoliberal policies, the State has a passive role in urban planning. Nevertheless, in Mexico, zoning has the legal faculty to orientate industry emplacement in a city. This longitudinal and micro-spatial study analyzes the local government influence on the spatial configuration of industry in Mexico City metropolitan area. The 'laissez faire' policy is emphasized when land use regularization process is applied only in the highest production nodes. This phenomenon shows how economic force is developed as a political mechanism to transform urban planning decisions.