42 Design for others, architectural, engineering and technical consulting, inspection and research services, all in the fields of aviation, public transit and transportation services and facilities, emergency and disaster preparedness and recovery, site restoration, hazardous waste and contaminated site remediation, environmental facilities, water and waste treatment and water resource conservation, energy recovery systems, geotechnical and geoenvironmental projects, public infrastructure, energy and transportation systems and infrastructure, alternative energy, and wind power, geographic information systems, web-based regulatory guides, interactive data management applications, information technology; inspecting, reviewing and evaluating standards and practices to assure compliance with environmental, safety, zoning and procurement laws and regulations; evaluation and testing of land, water, and air for the presence of hazardous materials; environmental engineering design, consulting, inspection and planning services; engineering and inspection services in the field of the environmental sciences; engineering and inspection services for the construction of municipal infrastructure facilities; engineering and inspection services for the construction of transportation facilities, namely, roads, bridges, airports, railroads and ports; conducting feasibility studies for tolling services; engineering services in the fields of traffic and transportation; technological consulting, inspection and engineering services in the fields of energy and transportation systems and infrastructure, alternative energy, and wind power; providing traffic and transportation planning services; architectural design services in the fields of traffic and transportation; planning, architectural design, and structural and mechanical design services in the field of residential, commercial and institutional buildings and structures