Purpose and Scope. This regulation establishes who shall be a member of the MAGI household and who will be excluded from the MAGI household. The regulation applies to applicants and recipients of coverage groups described under Regulation .03A of this chapter. Household Composition. An individual, plus anyone for whom the individual claims a personal exemption, shall be included in the federal tax filing unit in the taxable year in which an initial determination or renewal of eligibility is being made. For an individual who does not file a federal tax return and is not claimed as a federal tax dependent in the taxable year in which an initial determination or renewal of eligibility is being made, the household size shall consist of the individual and the following individuals: Spouse; and Natural, adopted or step children. For a child applicant the household size shall consist of the child and the following individuals: Natural, adopted, or step parents; and Natural, adopted, or step siblings. In the case of a married couple living together, each spouse shall be included in the household of the other spouse, regardless of whether they expect to file a joint federal tax return. In the case of determining the household size of a pregnant woman, the pregnant woman shall be counted as herself plus the number of children she is expected to deliver.