CE activities meeting the criteria for continuing education requirements for the practice of physical therapy may include: Postgraduate academic course work in physical therapy taken at an accredited college or university, which may earn 10 CE hours per course credit; Attendance at Board-approved or APTA-approved continuing education, which may earn 1 CE hour for every approved hour; Presentation of continuing education, which may earn 2 CE hours for every hour of presentation with presentations of the same subject matter receiving CE hours only once in a renewal period; Authoring, co-authoring, or editing of a book, book chapter, or peer- reviewed journal article, which may earn 30 CE hours with proof accompanying the request for approval; Authoring an abstract, which may earn 10 CE hours; Completion of an approved self-directed study course, which may earn 1 CE hour per interactive hour; Completion of an approved home study course, which may earn 1 CE hour per interactive hour; Completion of continuing education relevant to workplace and community service contributions, and leadership relevant to the development of personal and professional competence, which may earn 1 CE hour only once in a renewal period; Supervision of physical therapists or physical therapist assistant students in a clinical rotation, which may earn 10 CE hours only once in a renewal period (1 CE hour equals 40 hours of supervision); or Research, which may earn 10 CE hours.