Upon the application of any State or political subdivision thereof, or any public or private nonprofit organization, the Secretary is authorized, after consultation with the Secretary of Labor, the Secretary of Health and Human Services, the Secretary of Housing and Urban Development, and the Director of the Office of Economic Opportunity, and after the Secretary determines that the housing and related facilities cannot reasonably be provided in any other way, to provide financial and technical assistance for the establishment, in rural areas, of housing and related facilities for trainees and their families who are residents of a rural area and have a rural background, while such trainees are enrolled and participating in training courses designed to improve their employment capability. The selection of training sites and location of housing shall be made with due regard to the economic viability of the area, and only after consideration of a labor area survey and full coordination among all Government agencies having primary responsibility for administering related programs.