CMS-DHFS-ACA PROTECTIONS. Amends the State Employees Group Insurance Act of 1971. Prohibits the State from applying for any federal waiver that would reduce or eliminate any protection or coverage required under the Patient Protection and Affordable Care Act (ACA) that was in effect on January 1, 2017, including, but not limited to, any protection for persons with pre-existing conditions and coverage for services identified as essential health benefits under the ACA. Provides that the State or an agency of the executive branch may apply for such a waiver only if granted authorization by the General Assembly through joint resolution. Amends the Illinois Insurance Code. Prohibits the State from applying for any federal waiver that would permit an individual or group health insurance plan to reduce or eliminate any protection or coverage required under the ACA that was in effect on January 1, 2017, including, but not limited to, any protection for persons with pre-existing conditions and coverage for services identified as essential health benefits under the ACA.