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Nationwide Interoperability

The IBTTA Interoperability Committee is composed of representatives of IBTTA member toll agencies and firms that provide services to the toll industry. The charge of this committee is to advance the strategic plan goal of achieving nationwide interoperability in the United States.

Support Documents and Information


In May 2017 IBTTA finalized the test plan describing the methodologies and procedures to be used in conducting the Phase 2 NIOP protocol performance testing. The following documents describe both the test approach and the plan methodologies. This plan was developed in consultation with both toll operators and the technology manufacturers. The goal of the plan is to accomplish the following:



Status on Interoperability – Subcommittee on Transportation and Public Assets of the U.S. House Oversight and Government Reform Committee (September 28, 2015). Below are copies of testimony and related documents.


Board Briefing on Subcommittee Activities: