Washington, D.C. litigation counsel Nina Rose spoke at Strafford's webinar titled " Ascertainability Requirement in Class Litigation: Lessons From Byrd v. Aarons and Carrera v. Bayer Corp." on September 17. The webinar provided an overview of ascertainability requirement in class certification, court rulings on the ascertainability requirement, impact on future class actions, and best practices for challenging class membership and defeating certification due to insufficient ascertainability.