Upper level: e1 Products and technology
Products and technology of land areas, as they affect an individual's outdoor environment through the implementation of land use policies, design, planning and development of space, including those adapted or specially designed.
Inclusions: products and technology of land areas that have been organized by the implementation of land use policies, such as rural areas, suburban areas, urban areas, parks, conservation areas and wildlife reserves
Lower livel:
e1603 Products and technology of parks, conservation and wildlife areas
e1608 Products and technology of land development, other specified
e1609 Products and technology of land development, unspecified