In addition to the definitions contained in subpart A of this part, incorporated herein by reference, except § 241.1(f), (h) and (i), the following terms, as used in § 241.500 et seq., shall have the meaning indicated:

(a) Approved lender means a financial institution or other mortgagee approved by the Commissioner as eligible for insurance under section 2 of the National Housing Act, or a mortgagee approved under section 203(b)(1) of the National Housing Act, or a state housing agency approved pursuant to 24 CFR 883.102.

(b) Borrower means the owner of a project held in fee simple or of a leasehold interest which is not now covered by a mortgage insured or held by the Secretary.

(c) Energy saving loan means any form of secured obligation used in connection with the purchase and installation of energy conserving improvements.

(d) Multifamily project means a project which consists of not less than five dwelling units on one site, each such unit providing complete living facilities including provisions for cooking, eating, and sanitation within the unit and which is not now covered by a mortgage insured or held by the Secretary.