About

The National Center for Interstate Compacts

THE HISTORY

NCIC supports states across the full lifecycle of a compact—from early concept and enactment to long-term administration and modernization.

For more than two decades, the National Center for Interstate Compacts (NCIC) has helped states work together through interstate compacts—constitutionally authorized agreements that allow states to act collectively while preserving their authority.

As states confront shared challenges in areas such as workforce mobility, public safety, infrastructure, and emergency response, interstate compacts offer a proven, state-led alternative to one-size-fits-all federal action. They enable coordination, and collaboration without sacrificing state autonomy.

Established in 2004 by The Council of State Governments, NCIC provides the expertise, tools, and coordination states need to design, implement, and sustain effective interstate compacts. Today, NCIC supports states across the full lifecycle of a compact—from early concept and enactment to long-term administration and modernization.

STATE SUPPORT

A Trusted Information Hub

NCIC serves as the nation’s central clearinghouse for interstate compact information, offering:

  • A comprehensive online library of compact language, rules, bylaws, and guidance
  • A searchable database with state-by-state membership, years of joinder, and statutory citations
  • Ongoing updates on state and federal actions affecting interstate compacts


This shared foundation helps states make informed decisions and reduces duplication across jurisdictions.

Technical and Legal Assistance

NCIC works directly with states, compact commissions, and administrators to:

  • Evaluate whether an interstate compact is an appropriate policy solution
  • Review and modernize existing compacts
  • Support implementation, amendment, and compliance
  • Provide plain-language explanations of compact requirements for legislators and officials


This assistance helps ensure compacts are both legally sound and operationally effective.

Education, Training, and Collaboration

NCIC strengthens the compact community by:

  • Offering education and training for compact administrators and state leaders
  • Convening national and regional forums to share best practices
  • Developing resources that help policymakers understand when and how compacts can be used


By connecting states to one another, NCIC turns individual experience into shared knowledge.

Supporting State Sovereignty Through Collaboration

At its core, NCIC promotes interstate compacts as a distinctly American solution—one that allows states to lead together while preserving their authority.

Through compacts, states can:

  • Address shared challenges collectively
  • Establish uniform standards where needed
  • Create durable governance structures that evolve over time
  • Speak with a stronger, unified voice


This approach reinforces federalism by strengthening state leadership, not replacing it.

Expanding the Compact Network Through Technology

In 2026, CSG launched a new project to support states achieve efficient software solutions through state collaboration. The CSG Intergovernmental Software Collaborative provides states with resources and technical assistance to form new and leverage existing state partnerships to develop and maintain software technology that meets collective public policy needs.

The project builds from the work of NCIC to create CompactConnect, a shared, open source data platform for occupational licensure compacts. The platform saves an estimated $1.1 million per compact compared to building separate systems

THE RESEARCH

States Call for a National Center on Compacts

As interstate compacts became more central to state policymaking, the systems supporting them did not keep pace.

As interstate compacts became more central to state policymaking, the systems supporting them did not keep pace. States increasingly relied on compacts to address shared challenges, yet the legal guidance, technical expertise, and practical tools needed to manage them were often difficult to access.

To better understand those gaps, The Council of State Governments conducted a 50-state survey of interstate compact administrators. Across policy areas and regions, the message was consistent: states needed more coordinated support to manage, sustain, and evolve their compacts effectively.

Administrators cited challenges interpreting legal requirements, navigating enforcement and compliance, educating legislators and agency leaders, coordinating with peers in other states, and responding to federal actions that could affect compact authority.

The conclusion was clear. Interstate compacts were a vital tool for state-led problem solving, but the community responsible for administering them lacked a dedicated source of support.

States consistently identified the need assistance with:

The National Center for Interstate Compacts was created to meet that need.

ABOUT CSG

Founded in 1933, The Council of State Governments (CSG) is the nation’s only organization serving all three branches of state government. CSG is a region-based forum that fosters the exchange of insights and ideas to help state officials shape public policy. This offers unparalleled regional, national and international opportunities to network, develop leaders, collaborate and create problem-solving partnerships.