42 Providing scientific and technical information in the field of sustainable development; Technical analysis of environmental, economic and social factors for building and development to quantify and prioritize environmental benefits, risks and costs; Providing scientific and technical information and analysis in the field of sustainable development, namely establishing immediate and long term priorities for developers; Providing scientific and technical information and analysis in the field of sustainable development, namely optimize energy, waste water, transportation, air quality and water management strategies and support negotiations with utilities and other public agencies; Engineering and design services for others, namely energy efficiency and sustainable design consulting for building design teams, building owners, property managers, contractors and utilities; technical consultation in the field of energy efficiency and sustainability evaluations of building designs and residential developments, energy efficiency design strategies, evaluation and negotiation of alternative power procurement; engineering and design using minimal environmental impact techniques; Green Building development and consulting for new and existing residences, buildings and developments, namely, technical consultation with respect to the selection of environmentally sound construction materials and techniques, construction waste management, indoor environmental quality, energy efficiency, recycling, and conservation