Welcome to the 3PAS certification Help CenterRequirements for certified vendors: Adwords and DoubleClick Ad ExchangeRequirements for third-party ad servingBrand Study Survey Content GuidelinesCertified vendors: Adwords and DoubleClick Ad ExchangeVendors that are certified for third-party adsCertified vendors: YouTubeYouTube third-party ad vendorsCertification ProcessCertification Process Guide