Lei Nº 466, de 21 de outubro de 1981.
This Law, composed of 18 articles, regulates the industrial zoning in the Metropolitan area of Rio de Janeiro. It defines 3 areas for the establishment of industrial activities, namely Areas of Strictly Industrial Use (ZEI), Areas of Mainly Industrial Use (ZUPI) and Areas with Diversified Use (ZUD). The law establishes the competent bodies for the zoning and the classification of industrial activities. For the ZUD areas, it requires a Plan aimed at rationalise the land use for industrial purposes and to minimize environmental impacts.