Increases the loan limit for direct loans provided by the Department of Hawaiian Home Lands to 75% of the maximum single residence loan amount allowed in Hawaii by the United States Department of Housing and Urban Development's Federal Housing Administration, instead of 50%, as currently outlined in section 215 of the Hawaiian Homes Commission Act, 1920, as amended. Takes effect on either the date of the Secretary of the Interior's notification that congressional approval of this Act is unnecessary, or on the date of consent by the United States Congress.