18 USC 1953 - Interstate transportation of wagering paraphernalia

(a) Whoever, except a common carrier in the usual course of its business, knowingly carries or sends in interstate or foreign commerce any record, paraphernalia, ticket, certificate, bills, slip, token, paper, writing, or other device used, or to be used, or adapted, devised, or designed for use in (a) bookmaking; or (b) wagering pools with respect to a sporting event; or (c) in a numbers, policy, bolita, or similar game shall be fined under this title or imprisoned for not more than five years or both.
(b) This section shall not apply to
(1)  parimutuel betting equipment, parimutuel tickets where legally acquired, or parimutuel materials used or designed for use at racetracks or other sporting events in connection with which betting is legal under applicable State law, or
(2)  the transportation of betting materials to be used in the placing of bets or wagers on a sporting event into a State in which such betting is legal under the statutes of that State, or
(3)  the carriage or transportation in interstate or foreign commerce of any newspaper or similar publication, or
(4)  equipment, tickets, or materials used or designed for use within a State in a lottery conducted by that State acting under authority of State law, or
(5)  the transportation in foreign commerce to a destination in a foreign country of equipment, tickets, or materials designed to be used within that foreign country in a lottery which is authorized by the laws of that foreign country.
(c) Nothing contained in this section shall create immunity from criminal prosecution under any laws of any State, Commonwealth of Puerto Rico, territory, possession, or the District of Columbia.
(d) For the purposes of this section (1) State means a State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, or any territory or possession of the United States; and (2) foreign country means any empire, country, dominion, colony, or protectorate, or any subdivision thereof (other than the United States, its territories or possessions).
(e) For the purposes of this section lottery means the pooling of proceeds derived from the sale of tickets or chances and allotting those proceeds or parts thereof by chance to one or more chance takers or ticket purchasers. Lottery does not include the placing or accepting of bets or wagers on sporting events or contests.