Here they are:

1. Select and develop sites to promote livable communities.
2. Develop flexible designs to enhance building longevity.
3. Use natural strategies to protect and restore water resources.
4. Improve energy efficiency while ensuring thermal comfort.
5. Reduce environmental impacts related to energy use.
6. Promote occupant health and well-being in the indoor environment.
7. Conserve water and consider water reuse systems.
8. Use environmentally preferable building materials.
9. Use appropriate plant material.
10. Plan for recycling during construction, demolition and occupancy.

Source: "10 Simple Things You Can Do," Interiors & Sources, June 2006.

See the list in more detail.