The California Data Use and Reciprocal Support Agreement (CalDURSA) is a multi-party data sharing agreement governing statewide health information sharing over the California Trusted Exchange Network (CTEN). It is an important aspect of the California’s strategy for statewide interoperability.

California Data Use and Reciprocal Support Agreement (CalDURSA)
Redlined comparison of the DURSA and CalDURSA


The Model Modular Participants Agreement (MMPA) is a model agreement between HIOs and their exchange participants used by several California HIOs, including several CAHIE members. If you are interested in adopting or developing a participant agreement that is compatible with the CalDURSA, consider starting with the MMPA.

Model Modular Participants Agreement
Model Modular Participants Agreement Addendum


The California Office of Health Information Integrity (CalOHII) created the State Health Information Guidance (SHIG) as an authoritative but non-binding guidance from the State of California written in plain language for a general audience. It explains when, where, and why mental health and substance use disorder information can be exchanged, and also provides clarification of state and federal laws.

State Health Information Guidance (SHIG) updated January 2018

More information on the SHIG is also available on CalOHII’s website.

Reusable CAHIE Slides

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