Americas
North America
The office is open Monday - Friday, 8:00 A.M. to 8:00 P.M. Eastern Time; closed on local holidays.
| To schedule, reschedule, cancel and confirm appointments or for general testing information | 800-998-3926 |
| For any problems encountered during your experience with us | 800-853-6769 |
Latin America
The office is open Monday - Friday, 8:30 A.M. to 5:00 P.M. Eastern Time; closed on local holidays.
+1-443-751-4300