(a) The New York State Legislature has found that the design, construction, and maintenance of residential buildings have significant impacts on the environment and natural resources. The provisions of this Part shall apply to the construction and substantial renovation of residential buildings with less than 12 dwelling units incorporating design and building techniques intended to:

(b) The purpose of this Part is to promote the construction and renovation of "green" or "sustainable" residential buildings through the creation of a green residential building program to provide incentives for the use of design and construction techniques that facilitate, promote, or achieve energy efficiency and reduced emissions, smart planning, and a healthy indoor living environment, and incorporate products that are environmentally responsible, conserve natural resources, and reduce waste.