The rent charge of a unit which is to be reserved for occupancy by a household with an income at or below 80 percent of the median income for the area, does not exceed 30 percent of the income of a household of maximum income and size expected, under the commitment made in the AHP application, to occupy the unit (assuming occupancy of 1.5 persons per bedroom or 1.0 person per unit without a separate bedroom), i.e., the rent does not exceed 30 percent of the applicable 50, 60, or 80 percent targeted median income level committed to in the application.