Pacific Northwest National Laboratory (PNNL) is soliciting proposals for a second-generation Mobile Radiation Detection and Identification System (MRDIS) in support of the Megaports Initiative. Megaports is a Department of Energy, National Nuclear Security Administration program to screen containerized cargo for special nuclear and other radiological materials as it moves through the global maritime shipping network. Sol. No. 95969. Respond by Jan. 30. An award for a fixed unit price indefinite quantity contract is expected by the end of April. Contact: Shawna Heaton, contract specialist, 509-372-4142, [email protected].