Critical Infrastructure Sectors
How sector classifications organize essential infrastructure without implying that sectors operate independently.
Why this matters
How sector classifications organize essential infrastructure without implying that sectors operate independently.
Core system ideas
The United States currently organizes critical infrastructure into 16 sectors through CISA, while other countries use different classifications.
Sector labels help assign responsibility and coordinate risk management, but many real services cross several sectors.
Cross-sector dependencies often matter more during disruption than the formal sector boundary.
What to review
Useful reviews usually combine service criticality, dependencies, condition, capacity, maintenance, alternate arrangements, restoration time and clear ownership rather than relying on one isolated metric.