12 U.S. Code § 25a - Participation by national banks in lotteries and related activities
(a) Prohibited activities
A national bank may not—
(3) announce, advertise, or publicize the existence of any lottery; 
(b) Use of banking premises prohibited
A national bank may not permit—
(1) the use of any part of any of its banking offices by any person for any purpose forbidden to the bank under subsection (a) of this section, or
As used in this section—
(2) The term “lottery” includes any arrangement whereby three or more persons (the “participants”) advance money or credit to another in exchange for the possibility or expectation that one or more but not all of the participants (the “winners”) will receive by reason of their advances more than the amounts they have advanced, the identity of the winners being determined by any means which includes—
(d) Lawful banking services connected with operation of lotteries
Nothing contained in this section prohibits a national bank from accepting deposits or cashing or otherwise handling checks or other negotiable instruments, or performing other lawful banking services for a State operating a lottery, or for an officer or employee of that State who is charged with the administration of the lottery.
(e) Regulations; enforcement
The Comptroller of the Currency shall issue such regulations as may be necessary to the strict enforcement of this section and the prevention of evasions thereof.
 So in original. The word “or” probably should appear.
Source(R.S. § 5136B, formerly § 5136A, as added Pub. L. 90–203, § 1(a),Dec. 15, 1967, 81 Stat. 608; renumbered R.S. § 5136B,Pub. L. 106–102, title I, § 121(a)(1),Nov. 12, 1999, 113 Stat. 1373.)