ACA certified instructors need to meet a number of objectives, this is not just a skills assessment.  The ACA is interested in persons interested in sharing their knowledge of their discipline.  Instructors need excellent communication skills that include both planned and impromptu presentations.  Instructors need strong safety skills and great judgment.  Instructors also need a number of soft skills to be effective like group management, coaching/feedback, and great organization.  This section goes into more detail on the whole package of criteria we use in awarding instructor certifications.