GS0421: Scientific research; Providing specialized facilities for scientific research and testing; scientific and technological research, development, engineering and testing services in the technological fields of autonomous and connected vehicles, robotics, smart power grids and water systems, advanced manufacturing technologies, large-scale infrastructure development and renewal, roadside safety and physical security, architecture, energy production, hypersonic and subsonic transportation, artificial intelligence and machine learning, augmented and virtual reality, agriculture, cybersecurity, transportation research, and national security