42 Engineering services, new product development, and design and testing for new product development relating to alternative and renewable energy, development of alternative and renewable energy, and electrical and solar energy systems; Design, development, testing, and inspection for others related to space vehicles, space ships, aeronautical vehicles, astronautical vehicles, rocket propulsion systems, other aerospace technology, and astronautical parts and fittings, all the aforementioned related to alternative and renewable energy uses with thereof; Inspections of aircraft related to alternative and renewable energy sources