CMS encourages the use of an SI outside the state agency, but states can consider themselves in that role if they can support that effort and if that decision is made with consultation and agreement from CMS. For more information about the role of the SI, see Section 1.7 in part 01 of MECT Medicaid Enterprise Certification Life Cycle. https://www.medicaid.gov/medicaid/data-and-systems/mect/index.html