As used in this article, the following terms shall have the meanings indicated:
A dwelling unit for persons and families whose income does not exceed 80% of the median income for the area, adjusted for family size, ("AMI") as determined by the United States Department of Housing and Urban Development (H.U.D.) and can be sold or rented, as applicable, at the following prices: in the case of rentals, a mean monthly contract rent, including utilities, that does not exceed 30% of the income of a family whose income is at 80% of AMI or, in the case of homeownership, monthly housing expenses (as defined below) that do not exceed 30% of the income of a family whose income is at 80% of AMI. Title to any project or property receiving a tax abatement under this article shall be subject to deed covenants or restrictions in such form as provided by the Connecticut Department of Housing or other applicable regulatory authority, as may be amended from time to time, which shall prescribe a satisfactory method of future enforcement and shall require that such affordability restrictions shall be maintained for at least 40 years after the initial occupation of a proposed rental development or, in the case of a homeownership project, for a period of 40 years or such lesser affordability period as may be required by the Connecticut Department of Housing, H.U.D. or other applicable regulatory authority.