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A chief information officer (CIO) is a senior leader who advises an organization’s top management on information technology and information resources, and guides how technology supports organizational goals. The title does not carry one universal set of duties: a CIO’s authority, reporting line and operational remit depend on the organization and its governing rules.
What does a chief information officer do?
A CIO links technology decisions to an organization’s priorities. The role commonly combines executive advice and governance with responsibility for technology architecture, acquisition, operations and process improvement. A CIO may also oversee how information resources are managed and assess whether technology programs are delivering their intended results.
In U.S. executive agencies, federal law supplies a specific baseline. Under 40 U.S.C. § 11315, the CIO advises the agency head and senior management on IT acquisition and information-resource management, develops and facilitates implementation of sound, secure and integrated IT architecture, and promotes efficient information-resource processes, including improvements to work processes. The law also assigns agency CIOs responsibility for monitoring IT program performance and advising whether programs or projects should continue, change or end.
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What is a CIO responsible for?
- Strategic alignment: Advise senior leadership on how technology and information resources can support organizational goals.
- Architecture and governance: Guide technology architecture and help ensure IT decisions follow relevant policies and priorities.
- Acquisition and resources: Oversee or advise on technology acquisition and the management of information resources.
- Operations and performance: Depending on the organization, monitor IT services or programs and assess their performance.
- Process improvement: Identify ways technology and information management can make organizational processes more effective and efficient.
These are common areas of responsibility, not a guaranteed checklist for every CIO. NIST’s glossary describes the role in terms of managing IT to achieve agency strategic and information-resource-management goals, while noting that the title can also be used in subordinate organizations for people with similar responsibilities: NIST CSRC glossary.
Does every organization’s CIO have the same authority?
No. The CIO title alone does not establish whether someone controls a budget, approves purchases, manages staff, runs day-to-day IT services or has authority across an entire enterprise. Some CIOs serve organization-wide; others work within a subordinate unit. Reporting lines and delegated powers also differ.
For a specific CIO, check the organization’s governing law or charter, job description and delegations of authority. Useful points to compare are the role’s scope, reporting line, decision-making powers and operational remit—such as architecture, service delivery, security, data or process management.
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One example: the U.S. Department of State
The State Department’s Foreign Affairs Manual describes its CIO as the department’s senior IT professional, with a reporting route through the Under Secretary for Management to the Secretary on IT matters. It also assigns duties related to IT system availability, contingency planning and system authorization. The manual revision cited here is dated April 17, 2025. This describes the State Department’s arrangement, not a standard that applies to every CIO.
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What does federal law say about agency CIOs?
The statutory definition is specific to U.S. executive agencies; it should not be treated as a universal definition for private companies, nonprofits, educational institutions or governments outside the United States. Federal law also provides for agency IT management and an annual review of an agency’s IT portfolio. The U.S. Code chapter on agency organization and management provides this federal context.
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