Applicants for a loan under the act for the preparation of a feasibility report on a proposed project shall file an application for the loan on a form provided by the department. Such application should be filed after receipt of a favorable written reply from the department on a written request for a preliminary determination of eligibility for a loan for the construction of the proposed project filed with the department by the applicant in accordance with Article 2 of these regulations. The application shall be accompanied by such additional information as the department may determine is required to reach a decision in the particular case.