Medicaid and CHIP Eligibility and Enrollment Policies as of January 2021: Findings from a 50-State Survey
Medicaid and CHIP Payment Advisory Commission, CHIP Eligibility. https://www.macpac.gov/subtopic/eligibility-2/
Maximizing Enrollment, Consumer Assistance in the Digital Age: New Tools to Help People Enroll in Medicaid, CHIP and Exchange, (July 2012). http://www.maxenroll.org/files/maxenroll/resources/Maximizing%20Enrollment%20-%20Consumer%20Assistance%20-%20July%202012.pdf
42 CFR §431.213 - Exception from advance notice. The agency may send a notice not later than the date of action if: (d) The beneficiary's whereabouts are unknown and the post office returns agency mail directed to him indicating no forwarding address (See §431.231 (d) of this subpart for procedure if the beneficiary's whereabouts become known).