Contact and Support

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Locations and Contact Information

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Main Office

College of American Pathologists
325 Waukegan Road
Northfield, IL 60093-2750

Directions to main office

Phone

United States: 800-323-4040
Outside United States: +1 847-832-7000

Fax
+1 847-832-8000

District of Columbia Office

College of American Pathologists
1001 G Street, Suite 425 West
Washington, DC 20001

Directions to DC office

Phone

United States: 800-392-9994
Outside United States: +1 202-354-7100

Fax
+1 202-354-8101

Support

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Hours of Operation

Monday–Friday
7:00 AM–5:30 PM Central Time

After-hours

5:30 PM–7:00 AM Central Time
Emergency Hotline: 877-272-4626

Holidays (CAP Offices Are Closed)

2026

  • January 1: New Year’s Day
  • January 19: Martin Luther King Day
  • May 25: Memorial Day
  • July 3: Independence Day
  • September 7: Labor Day
  • November 26–27: Thanksgiving
  • December 25: Christmas Holiday

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