12 U.S.C. § 371d: Investment in bank premises or stock of corporation holding premises

unless the bank receives the prior approval of the Comptroller of the Currency (with respect to a national bank) or the Board (with respect to a State member bank); unless the aggregate of all such investments and loans, together with the amount of any indebtedness incurred by any such corporation that is an affiliate of the bank, is less than or equal to the amount of the capital stock of such bank; or the aggregate of all such investments and loans, together with the amount of any indebtedness incurred by any such corporation that is an affiliate of the bank, is less than or equal to 150 percent of the capital and surplus of the bank; and has a CAMEL composite rating of 1 or 2 under the Uniform Financial Institutions Rating System (or an equivalent rating under a comparable rating system) as of the most recent examination of such bank; is well capitalized and will continue to be well capitalized after the investment or loan; and provides notification to the Comptroller of the Currency (with respect to a national bank) or to the Board (with respect to a State member bank) not later than 30 days after making the investment or loan. the term “affiliate” has the same meaning as in section 221a of this title ; and the term “well capitalized” has the same meaning as in section 1831 o (b) of this title.