Based in Champaign, Illinois, the Corps' Construction Engineering Research Laboratory – internationally recognized infrastructure R&D authority – created and maintains the ProjNet platform. In 1998 the U.S. Department of State became ProjNet's first user. State was the first of many Federal agencies and other groups – among them a state government, a major university and an international engineering design firm – to improve their own design review processes with ProjNet., Single and secure record of every document, inquiry, comment and resolution. ProjNet is an integrated suite of secure, on demand, design review, inquiry and comment, issue resolution, communications and document archiving tools., ProjNet makes use of a persistent cookie, stored in the browser of the computer you are accessing our system with. This cookie stores only the agency you last logged into, for ease of use in future visits. The cookie lasts 14 days from last login, at which point it will expire..