You probably won’t be surprised to learn that there are disclosure requirements under both federal law and most State advertising laws. The Federal Trade Commission has Rules governing prize promotions, which include any sweepstakes, game of chance or representation that someone has won or may be eligible to win a prize. Many State advertising laws model the FTC Rules, and in some cases, additional requirements are imposed. Generally speaking, you must include the odds of winning a prize, a statement indicating that no purchase is necessary to win, and any rules, terms, and conditions related to participating in the contest or claiming a prize.