The Accreditation in Public Relations (APR), the Accreditation in Public Relations and Military Communications (APR+M), and the Certificate in Principles of Public Relations are voluntary certifications in the United States and Canada for persons working in the field of public relations (PR) and, in the case of the APR+M, military public affairs.
Approximately five percent of public relations practitioners in the U.S. and Canada hold one of the credentials. They are administered by the Universal Accreditation Board, an association of nine major public relations organizations.