This is a sources sought notice for market research and planning purposes only, not a commitment by the government to procure. The government is seeking information and estimated costs for a portable or stationary device that can detect and defeat commercial off-the-shelf drones. Interested contractors must be registered in the System for Award Management (SAM) at www.sam.gov. Responses must be submitted electronically to the designated email addresses. The government will not compensate respondents for any costs incurred in preparing their responses.