CISA’s Infrastructure Security Division coordinates and collaborates across government and the private sector. The Division conducts and facilitates vulnerability and consequence assessments to help critical infrastructure owners and operators and State, local, tribal, and territorial partners understand and address risks to critical infrastructure. It also provides information on emerging threats and hazards so that appropriate actions can be taken, as well as tools and training to partners to help partners in government and industry manage the risks to their assets, systems, and networks.
ISD Vision and Mission
ISD vision: Secure and resilient critical infrastructure across the Nation achieved through The sound risk management, collaboration, information sharing, innovation, effective program management, and a highly skilled workforce.
ISD mission: Lead the national effort to secure critical infrastructure from all hazards by managing risk and enhancing resilience through collaboration with the critical infrastructure community.

Infrastructure Assessments and Analysis
Infrastructure Assessments and Analysis leads the Department’s efforts to gather and manage vital information regarding the nation’s critical infrastructure. The division helps ensure needed infrastructure data is available to homeland security partners by identifying information sources and developing applications to use and analyze critical infrastructure data.
CISA Chemical Security
The CISA Chemical Security program office is responsible for implementing chemical security regulatory programs and developing voluntary chemical security resources that all facilities with hazardous chemicals can implement regardless of regulatory status.