(4) Effective January 1, 2014, in determining the eligibility of an individual using MAGI-based income, a state must subtract an amount equivalent to 5 percentage points of the Federal poverty level for the applicable family size only to determine the eligibility of an individual for medical assistance under the eligibility group with the highest income standard using MAGI-based methodologies in the applicable Title of the Act, but not to determine eligibility for a particular eligibility group.