The Secretary shall, not later than thirty days after July 22, 1976, prescribe those rules, regulations, and procedures (including application forms) necessary to carry out this chapter. Such rules, regulations, and procedures shall assure that adequate consideration is given to the relative needs of various sections of the country. The Secretary shall consider among other factors (1) the severity and duration of unemployment in proposed project areas, (2) the income levels and extent of underemployment in proposed project area, and (3) the extent to which proposed projects will contribute to the reduction of unemployment. The Secretary, in consultation with the Secretary of Labor, and consistent with existing applica