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Headquarters
190 N Independence Mall West
Philadelphia, PA 19106-1572
Directions, mass transit and parking
ACP Customer Service
800-523-1546, x2600
215-351-2600
Washington Office
Government Affairs, Medical Laboratory Evaluation (MLE) Proficiency Testing, Practice Management Center
25 Massachusetts Avenue, NW
Suite 700
Washington, DC 20001-7401
Directions, mass transit and parking
202-261-4500
800-338-2746
MLE Customer Service
800-338-2746, option 5