Facebook developers will be able to restrict access to their applications by age and location. Facebook launched new API methods and an FMBL tag as part of its "demographic restrictions" initiative.
"We have seen an increasing number of complex cases where certain applications and certain content may be appropriate or available to specific audiences and users, but not to others," according to a Wednesday blog post from Facebook. "You may have an application where you want to limit the entire experience to a certain age group such as teenagers, or people of legal drinking age."
If you set your application to be viewed by people in the United States who are over 21, for example, people who do not fit within those parameters will not see the application in search results or be able to access it on the site. Developers will also not be able to send requests or notifications or publish feed stories to restricted users.
If you have a license for a game in the United States and Canada, you can restrict people in other countries from viewing it. Developers can also restrict specific content within an application while making it generally visible to all.