to 80 percent of the full actuarial value of the benefits provided under the health plan. A health plan under this paragraph may be referred to as a Tier 3 Plan . (4) Tier 4 To any veteran in priority group 5 or priority group 6, health insurance support sufficient to provide benefits to the veteran under a health plan that are actuarially equivalent to 70 percent of the full actuarial value of the benefits provided under the health plan. A health plan under this paragraph may be referred to as a Tier 4 Plan . (5) Tier 5 To any veteran not in a priority group covered by paragraphs (1) through (4) and not ineligible for such support under section 2602(d)(2) of this title, health insurance support sufficient to provide benefits to the veteran under a health plan that are actuarially equivalent to 60 percent of the full actuarial value of the benefits provided under the health plan. A health plan under this paragraph may be referred to as a Tier 5 Plan . (c) Additional premium support based on need The premium support provided by the Secretary under this subsection is as follows: (1) To any veteran with an annual gross household income that is less than 133 percent of the poverty line, health insurance support sufficient to cover any costs of such monthly premium that are more than 2 percent of the monthly gross household income of the veteran. (2) To any veteran with an annual gross household income that is between 133 percent and 150 percent of the poverty line, health insurance support sufficient to cover any costs of such monthly premium that are more than 3 percent of the monthly gross household income of the veteran. (3) To any veteran with an annual gross household income that is between 150 percent and 200 percent of the poverty line, health insurance support sufficient to cover any costs of such monthly premium that are more than 4 percent of the monthly gross household income of the veteran. (4) To any veteran with an annual gross household income that is between 200 percent and 250 percent of the poverty