The forests of Mexico cover a surface area of about 64 million hectares, or 34.5% of the country. These forests are categorized by the type of tree and biome: tropical forests, temperate forests, cloud forests, riparian forests, deciduous, evergreen, dry, moist, etc.. The agency in charge of Mexico's forests is the Comisión Nacional Forestal. Despite major reforms to the Mexican Constitution in 1992 regarding private land, Mexico would later enact major forest regulation laws in 1998 and 2003. Though no longer required to enforce land regulation in Mexico, Article 27 of the Mexican Constitution also still permits the Mexican Government to enact land regulation.