Keep in mind that these might change at any time, so be sure to check on the Facebook Pages Rules HERE before you do anything you could regret later. Here is the current version.
1. If you use Facebook to communicate or administer a promotion (ex: a contest or sweepstakes), you are responsible for the lawful operation of that promotion, including:
a. The official rules;
b. Offer terms and eligibility requirements (ex: age and residency restrictions); and
c. Compliance with applicable rules and regulations governing the promotion and all prizes offered (ex: registration and obtaining necessary regulatory approvals)
2. Promotions on Facebook must include the following:
a. A complete release of Facebook by each entrant or participant.
b. Acknowledgement that the promotion is in no way sponsored, endorsed or administered by, or associated with, Facebook.
3. Promotions may be administered on Pages or within apps on Facebook. Personal Timelines and friend connections must not be used to administer promotions (ex: “share on your Timeline to enter” or “share on your friend’s Timeline to get additional entries”, and “tag your friends in this post to enter” are not permitted).
4. We will not assist you in the administration of your promotion, and you agree that if you use our service to administer your promotion, you do so at your own risk.
Be sure to carefully craft your own waiver/disclaimer content to meet the above guidelines.