The preceding discussion of value presumes that there are alternatives to mainstream forms of resource-intensive and toxic production. A crucial purpose of materials evaluation and certification is to encourage more ecological design and production of materials. For this reason, it is important that we look specifically at the production of building materials to understand how postindustrial green manufacturing would differ from industrial production. This chapter will build on Chapter I of this dissertation, and on Chapter 9 of Designing the Green Economy (Milani, 2000)on possibilities for manufacturing and resource use in a green economysurveying concisely the general character of green production potentials. Appreciating this character has great implications for both building materials and community economic development strategies. In the first two chapters, I introduced three principal tendencies of postindustrial economic development: decentralization, dematerialization and detoxification. They are potentials that should emerge spontaneously from economic development, but have been suppressed or distorted by the social power relationships behind the economys rules and driving forces. While nevertheless still visible in partial forms in industrial capitalism, the 3Ds are the essence of authentic green economic development, and they are what makes the green economy postindustrial.