DERKA North America has announced appointment of Mary-Rose Nguyen as VP of corporate development for DERKA Certification Group. In this role, Ms. Nguyen will grow organization’s business in North America through new assessment service offerings. Dr. Arnold “Arny” Bereson, appointed by American Society for Nondestructive Testing as organization’s new executive director, will oversee use of organization’s resources towards their goals, guide daily operations, and act as official spokesperson.