After a short hiatus, Facebook has reopened its Preferred Marketing Developer program to new applicants.

Last month, the social network temporarily suspended the program while it reconsidered the overall process and badge requirements. Now Facebook is moving to a referral-based system to prioritize firms that worked directly with the company or an existing and qualified PMD.

This means that someone you’ve worked with at Facebook, or an existing PMD, must be willing to vouch for you. In most cases, this will be limited to larger brands with ample budgets since most small businesses don’t have a direct link to the social network.

Additionally, Facebook has announced new requirements for its PMD badge centered around four qualification areas: Pages, Ads, Apps, and Insights. You’ll now be expected to focus on “deeper integrations” across all four. You can read through the updated list of requirements on the Facebook Developers page.

While these changes are in effect immediately for new applicants, existing badge holders will have until October to meet the new requirements for maintaining their badges.

[Via: The Next Web, Image credit: Heather]