(a) Purpose. The purpose of this part is to set forth standards for real estate-related lending and associated activities by national banks.

(b) Scope. This part applies to national banks and their operating subsidiaries as provided in 12 CFR 5.34. For the purposes of 12 U.S.C. 371 and subparts A and B of this part, loans secured by liens on interests in real estate include loans made upon the security of condominiums, leaseholds, cooperatives, forest tracts, land sales contracts, and construction project loans. Construction project loans are not subject to subparts A and B of this part, however, if they have a maturity not exceeding 60 months and are made to finance the construction of either:

(1) A building where there is a valid and binding agreement entered into by a financially responsible lender or other party to advance the full amount of the bank's loan upon completion of the building; or

(2) A residential or farm building.