From 1993 to 1998 [[Network Solutions]] was the only Registrar and Registry Operator for [[.com]], [[.net]] and [[.org]] top level domain names ([[TLD]]s) based on a Cooperative Agreement between the company and National Science Foundation ([[NSF]]).<ref>
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[http://www.nsf.gov/news/special_reports/cyber/internet.jsp A Brief History of NSF and the Internet]</ref>
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The [[Department of Commerce]] (DOC) extended and amended the Cooperative Agreement with NSI when the contract expired in 1998. Under the new Cooperative Agreement, NSI will continue to serve as a Registry Operator and to implement a Shared Registry System ([[SRS]]), accessible to other registrars to be accredited by the new non-profit organization that will takeover the technical management of the DNS.<ref>[http://www.ntia.doc.gov/legacy/ntiahome/domainname/proposals/DOCNSI100698.htm Special Award Conditions