A2LA Accreditation

ISO is a non-governmental organization that promotes the development of standardized methods to facilitate the international exchange of goods and services. ISO accreditation reduces inefficiencies and puts mechanisms in place for continuous improvement of laboratory processes and procedures.

Through accreditation, the Scientific Services Division (SSD) achieves third-party recognition of its quality results, which promotes acknowledgement and respect for our laboratories' technical competence by industry and other agencies, both nationally and internationally. The Beverage Alcohol Laboratory (BAL), Tobacco Laboratory (TL), Nonbeverage Products Laboratory (NPL) and the Compliance Laboratory (CL) maintain ISO 17025 accreditation through the American Association for Laboratory Accreditation (A2LA). To view the certificate and scope of accreditation for each laboratory, select the appropriate link below.

NLC Scope and Certificate

CL Scope and Certificate










Green icon with a white phone. CONTACT US

For more information about the TTB laboratories contact the Scientific Services Division or see our Contact Us page for other TTB contact information.

Please direct correspondence to:

Alcohol and Tobacco Tax and Trade Bureau
Director, Scientific Services Division
6000 Ammendale Road
Beltsville, Maryland 20705-1250


Page last reviewed: June 20, 2012
Page last updated: May 10, 2021
Maintained by: Scientific Services Division