The National Center for Security in Control Systems for Critical Infrastructure (NCS3) is a collaboration between the Swedish Civil Contingencies Agency (MSB) and the Swedish Defense Research Agency (FOI) to strengthen the security of the systems that constitute critical infrastructure. The work carried out within NCS3 is regulated through assignments from MSB. This report summarizes the assignments agreed upon during 2019. Under the 2019 agreements, 10 assignments were performed during the period 2019-2020. These assignments have been performed by the Departments of Defense Analysis and Management Systems at FOI. The assignments included, among other things, four studies and four courses, two of which were part of the introduction of a new knowledge-enhancing course.