Prohibits the breeding, training, and interstate shipment of dogs intended to be used in dogfights for the purposes of sport, wagering or entertainment. Prohibits the manufacture, sale or movement of equipment to be used in shows involving dogfights, and the providing of facilities for such shows. Forbids the use of the Postal Service, telephone, telegraph, radio, and television for the purpose of promoting such shows.

Provides a fine of not more than $25,000, or imprisonment for not more than one year, or both, and forfeiture of dogs and equipment involved, for violation of this Act. (Adds 18 U.S.C. 48).