The National AOS Library houses a comprehensive collection of over 4,500 survey tools and measurement instruments. These resources are contributed by fifteen AOS State Health Departments, eleven AOS State Associations, and 753 AOS Local Health Departments.

The library’s collection includes various types of instruments, such as assessments, surveys, web forms, questionnaires, and observational tools.

The National AOS Library is organized into the following categories:

• Access to Linkages with Clinical Care
• Chronic Disease and Injury Prevention
• Communicable Disease & Surveillance
• Community Health Assessment (CHA)
• Community Relationships & Communications
• COVID-19 Response and Resources
• Emergency Preparedness and Response
• Environmental Health
• Health Equity & Social Determinants of Health
• Maternal, Child, and Family Health
• Workforce Development
• Organizational Competencies
• Accountability & Performance Management
• Policy Development & Support
• Miscellaneous