The Office of Professional Responsibility (OPR) has exclusive oversight for practitioner conduct and discipline. The OPR's activities includes instituting disciplinary proceedings and pursuing sanctions where appropriate by applying the standards set forth in Circular 230, Regulations Governing Practice before the Internal Revenue Service. The office also conducts extensive education and outreach to practitioners and other tax professionals. The OPR also has jurisdiction over appraisers who submit appraisals supporting tax positions and return preparers granted limited-practice privileges under the IRS's Annual Filing Season Program. Download Circular 230 Circular 230 provides regulations governing practice before the IRS by attorneys, certified public accountants, enrolled agents and others who are subject to OPR’s jurisdiction. Select language English Circular 230 PDF Spanish Circular 230 PDF Disciplined practitioners Search for disciplined tax professionals. Find disciplinary announcements, final agency decisions, case dispositions and guidance on restrictions during suspension or disbarment. Disciplined Practitioners Final Agency Decisions Connect with OPR Get the latest news, guidance and resources. News and Guidance Alerts from OPR OPR Webinars Speaking Engagements Related OPR At-a-glance Frequently Asked Questions – OPR Information for Tax Professionals