Critical Infrastructure Protection

Critical infrastructure protects the vital systems that keep America running—from the power grids that light our homes to the water systems we depend on daily. The federal government, working alongside private industry, secures these essential services against cyber and physical threats because their disruption would have devastating effects on national security, the economy, and public safety. With 16 designated sectors including energy, healthcare, transportation, and communications, critical infrastructure protection is a shared responsibility involving multiple federal agencies, state and local governments, and private operators.

Key Federal Agencies and Frameworks

The Cybersecurity and Infrastructure Security Agency (CISA), established under the Department of Homeland Security in 2018, serves as the national lead for protecting critical infrastructure. CISA works with infrastructure owners and operators—often in the private sector—to manage cyber and physical risks. The federal government provides guidance through frameworks like the NIST Cybersecurity Framework and CISA’s Cybersecurity Performance Goals (CPG 2.0), which offer voluntary best practices for organizations to strengthen their security posture. Beyond traditional cyber threats, federal agencies coordinate on specialized vulnerabilities, such as
securing the internet’s physical backbone under the ocean and
the Defense Department’s role in homeland defense and civil support.

Public-Private Partnerships

Since most critical infrastructure in the United States is privately owned, government agencies and private operators must share information and coordinate responses to threats. This partnership approach, emphasized in the National Infrastructure Protection Plan (NIPP), recognizes that both government and industry serve overlapping populations and benefit from collaborative defense strategies.

Regulatory Standards and Compliance

Different sectors face tailored regulatory requirements. Energy companies comply with the North American Electric Reliability Corporation’s (NERC) Critical Infrastructure Protection standards, while pipeline operators and transportation systems follow Transportation Security Administration (TSA) directives. Water and wastewater facilities must meet Environmental Protection Agency (EPA) guidelines, including risk assessments and emergency response planning. Federal contractors now face additional requirements through programs like the Cybersecurity Maturity Model Certification (CMMC 2.0), which protects sensitive information shared with the Department of Defense.