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Customs Laboratory Services LLC (CLS) has the expertise, equipment and experience to run all "U.S. Customs & Border Protection (CBP) " lab tests on all types of imported footwear, handbags, jackets and anoraks, coated or laminated textile fabrics, etc. For samples requiring highly specialized analytical instrumentation, CLS works closely with a number of university and commercial labs to provide you with an accurate, HTS-responsive lab analysis in the shortest possible turnaround time and at the lowest price.

For all lab analyses, CLS provides a written lab report that describes the sample, names the analysis methods used and presents the test results clearly and concisely. If appropriate, our lab report will also include our opinion as to the item's HTS classification and rate of duty.

CLS has two levels of service: Standard Service, which has a turnaround time of two to three weeks, and Priority Service, which has a turnaround time of three business days and for which a surcharge applies.

Please ship all samples directly to CLS laboratory at:

Customs Laboratory Services LLC
7361 Calhoun Place, Suite 405
Rockville, MD 20855-2765
P: 240-386-8050
Email: [email protected]


Lab Analyses

External surface area of the upper; percent composition by weight; surface area of outsole materials; foxing-like band; identity of upper materials

Textile Fabrics:

Fiber Identity & Fiber Content per AATCC Methods 20 and 20-A; Water Resistance per AATCC Method 35; Fabric construction (woven, knit, etc.); Coated or Laminated for HTS purposes


External surface areas of handbag materials (plastic, textile, leather)

Rainwear & Ski Jackets :

Water resistance per AATCC Method No. 35

Copyright 1999-2011 Customs Science Services, Inc.

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