The definitions in this part and in 12 CFR part 161 apply throughout parts 100 through 199 of this chapter, unless another definition is specifically provided.

The term commercial paper means any note, draft, or bill of exchange which arises out of a current transaction or the proceeds of which have been or are to be used for current transactions, and which has a maturity at the time of issuance of not exceeding nine months, exclusive of days of grace, or any renewal thereof the maturity of which is likewise limited.

The term corporate debt security means a marketable obligation, evidencing the indebtedness of any corporation in the form of a bond, note and/or debenture which is commonly regarded as a debt security and is not predominantly speculative in nature. A security is marketable if it may be sold with reasonable promptness at a price which corresponds reasonably to its fair value.

The term dwelling unit means the unified combination of rooms designed for residential use by one family, other than a single-family dwelling.

The term Federal savings association means a Federal savings association or Federal savings bank chartered under section 5 of the Act.

The term home means real estate comprising a single-family dwelling(s) or a dwelling unit(s) for four or fewer families in the aggregate.

The term loans means obligations and extensions or advances of credit; and any reference to a loan or investment includes an interest in such a loan or investment.

The terms nonresidential real estate or nonresidential real property mean real estate that is not residential real estate, as that term is defined in § 141.23 of this part.

The terms residential real estate or residential real property mean:

(a) Homes (including a dwelling unit in a multi-family residential property such as a condominium or a cooperative);

(b) Combinations of homes and business property (i.e., a home used in part for business);

(c) Other real estate used for primarily residential purposes other than a home (but which may include homes);

(d) Combinations of such real estate and business property involving only minor business use (i.e., where no more than 20 percent of the total appraised value of the real estate is attributable to the business use);

(e) Farm residences and combinations of farm residences and commercial farm real estate;

(f) Property to be improved by the construction of such structures; or

(g) Leasehold interests in the above real estate.

The term single-family dwelling means a structure designed for residential use by one family, or a unit so designed, whose owner owns, directly or through a non-profit cooperative housing organization, an undivided interest in the underling real estate, including property owned in common with others which contributes to the use and enjoyment of the structure or unit.

The term surplus means undistributed earnings held as unallocated reserves for general corporate use.