Final Environmental Assessment of Proposed Tracer Particle and Gas Releases and Finding of No Significant Impact
The United States (U.S.) Department of Homeland Security (DHS) Science and Technology Directorate (S&T), in partnership with the Metropolitan Transportation Authority (MTA) and other stakeholders in New York City (NYC), is proposing to conduct testing events to improve resiliency of urban areas and transportation systems against chemical or biological terrorist attacks (Proposed Action).