Mailing Address:
Collaborative Testing Services, Inc.
P.O. Box 650820
Sterling, VA 20165-0820
Street Address for shipments & courier deliveries:
21331 Gentry Drive
Sterling, VA 20166
Tel 1-571-434-1925
Fax 1-571-434-1937
Or Toll Free Fax (U.S. only): 1-866-fax-2cts
Please send e-mail inquiries to the appropriate address indicated below:
General inquiries may be directed to
To reach Subscriber Services
Forensics
Color & Appearance
Containerboard
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Paper & Paperboard
Plastics
Fasteners and Metals
Rubber
Wine
Agriculture (ALP)
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