The CDC intends to acquire annual maintenance and subscription support for its existing government-owned ITASCA 3DEC, FLAC3D, and Griddle perpetual software licenses. The agency has determined that Itasca Consulting Group, Inc. is the only known source capable of meeting this requirement due to the proprietary nature of the existing licenses. All responsible sources may submit a quotation or capability information in response to the request for quote, and timely responses will be considered.