N.D. Eryou, P.h.D., P.E., was founded in the late 1980s in New York State. The firm initially became involved in the design of aviation, truck/automobile, and marine fueling systems in New York City and Long Island. Airport sites included JFK, LGA, EWR as well as Teterboro, Republic, and MacArthur airports. Over the years we transitioned into the design of CNG fueling systems, emergency generator fueling systems, waste transfer systems, and waste oil/waste vegetable oil recycling facilities. Other specialty areas included military vehicle fueling for both wheeled and tracked systems, helicopter and cargo aircraft fueling systems. Over the course of many years, the firm has designed and supervised the construction of over 60 aviation fueling systems for military and commercial aviation and Fixed Base Operators (FBOs) in 26 US states and 2 Canadian provinces. Professional engineering licenses are held in all sectors. In 2004 the business decentralized and now is established in Florida, Utah, New York, and New Jersey. Close collaboration is straightforward due to the rapid adoption of web conferencing plus wider electronic acceptance of computer-generated documents and drawings by both clients and permitting agencies. As a result, our staff can quickly access job sites anywhere in the US and Canada.