Office of Professional Responsibility
Internal Revenue Service
1111 Constitution Ave., NW
Washington, DC 20224
Phone: (202) 622-6750
CPE Contact: Michael Hahn
Website: www.irs.gov/taxpros/agents/index.html
NOTE: This information was last updated in November, 2007. If you find that this information is no longer current, please write back so we may update the contact information.
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