The government is seeking market information on systems capable of detecting and identifying vapor and/or aerosol chemical hazards, including chemical warfare agents, non-traditional agents, and pharmaceutical-based agents. Proposed solutions should be at Technology Readiness Level 5 or higher and may address only a portion of the desired capabilities. The systems would support worldwide defense missions such as surveillance, reconnaissance, masking and unmasking operations, installation and personnel protection, decontamination support, and airlift contamination control. Systems must operate on platform power when integrated into vehicles, vessels, or fixed sites, and on battery power for dismounted, portable, or temporary missions. This is an RFI only and does not commit the government to contracting.