49 C.F.R. § 24.205
(a) Relocation planning. During the early stages of development, an agency shall plan Federal and federally assisted programs or projects in such a manner that recognizes the problems associated with the displacement of individuals, families, businesses, farms, and nonprofit organizations and develop solutions to minimize the adverse impacts of displacement. Such planning, where appropriate, shall precede any action by an agency which will cause displacement, and should be scoped to the complexity and nature of the anticipated displacing activity including an evaluation of program resources available to carry out timely and orderly relocations. Planning may involve a relocation survey or study, which may include the following:
(2) Services to be provided. The advisory program shall include such measures, facilities, and services as may be necessary or appropriate in order to:
(i) Determine, for nonresidential (businesses, farm, and nonprofit organizations) displacements, the relocation needs and preferences of each business (farm and nonprofit organization) to be displaced or, when determined to be necessary by the funding agency, temporarily displaced and explain the relocation payments and other assistance for which the business may be eligible, the related eligibility requirements, and the procedures for obtaining such assistance. This shall include a personal interview with each business. At a minimum, interviews with displaced business owners and operators should include the following items:
(ii) Determine, for residential displacements, the relocation needs and preferences of each person to be displaced, or temporarily displaced when the funding agency determines it to be necessary, and explain the relocation payments and other assistance for which the person may be eligible, the related eligibility requirements, and the procedures for obtaining such assistance. This shall include a personal interview with each residential displaced person and, when the funding agency determines it to be necessary, each temporarily displaced person.