Tetra Tech has been performing work for the Second Line of Defense program since 2003, supporting the National Nuclear Security Administration (NNSA) in its efforts to enhance international nuclear safety and non-proliferation, as well as reducing the global danger from weapons of mass destruction (WMDs).

Tetra Tech has been active in more than 100 locations in more than 20 countries, including the Port of Antwerp, Belgium. The Port of Antwerp is the fifth largest port in the world. A large, complex seaport, it was one of NNSA’s largest Megaports Program. The port area involves 10 terminals operated by five different companies; therefore careful coordination was necessary to ensure that port operations were not interfered with as a result of installation activities.

For the Second Line of Defense program overall, Tetra Tech has been responsible for the development, design, testing, installation and operation of nuclear detection systems, and for supporting visual surveillance and communication infrastructure at ports of entry in Greece, Belgium, Sri Lanka, and the Netherlands. In the United States, our projects included nuclear monitoring and detection systems in Colorado and Washington.


The Port of Antwerp Megaports Initiative Team won the Sandia Laboratories Silver President’s Quality Award, recognizing the team for their efforts in developing an economical solution to screening cargo for radioactive materials at one of the world’s busiest ports.