The Secretary shall establish a system meeting the requirements of this section under which residents of each State may apply for enrollment in, receive a determination of eligibility for participation in, and continue participation in, applicable State health subsidy programs. Such system shall ensure that if an individual applying to an Exchange is found through screening to be eligible for medical assistance under the State medicaid plan under title XIX ^[1] [42 U.S.C. 1396 et seq.], or eligible for enrollment under a State children’s health insurance program (CHIP) under title XXI of such Act [42 U.S.C. 1397aa et seq.], the individual is enrolled for assistance under such plan or program.