Certification and Testing

Zhaga certification indicates that a product has been tested by an independent test lab, and is fully compliant with all the requirements of one of the Zhaga Books. 

The use of a Zhaga logo on a product indicates that certification has been achieved. The logo conveys the meaning of interchangeability. 

All Zhaga-certified products are listed in the Certified Products database. The listed products are the only ones entitled to carry the Zhaga logo.

Test Labs for Zhaga Books

Testing for Zhaga compliance is carried out by testing facilities operated by an Authorized Testing Center. Separate authorization is required for each specific Book and each specific location.

The test labs that are authorized to carry out testing for each Book are listed below:

Book 2
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • IntertekTesting Services NA, 545 East Algonquin Road Suite H, Arlington Heights, IL 60005, USA
  • TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch, Building 12 & 13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen 518052, PR China
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 3
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch, Building 12 & 13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen 518052, PR China
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 4
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • IntertekTesting Services NA, 545 East Algonquin Road Suite H, Arlington Heights, IL 60005, USA
  • UL LLC, Via XXV Aprile, 3/B, 20875 Burago di Molgora (MB), Italy
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 5
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 6
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 7
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • IntertekTesting Services NA, 545 East Algonquin Road Suite H, Arlington Heights, IL 60005, USA
  • TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch, Building 12 & 13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen 518052, PR China
  • UL LLC, Via XXV Aprile, 3/B, 20875 Burago di Molgora (MB), Italy
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 8
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • IntertekTesting Services NA, 545 East Algonquin Road Suite H, Arlington Heights, IL 60005, USA
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany
Book 9
  • DEKRA Certification B.V., Meander 1051, 6825 MJ Arnhem, The Netherlands
  • UL LLC, 7036 Snowdrift Road, Allentown, PA 18106, USA
  • VDE Testing and Certification Institute, Merianstrasse 28, 63069 Offenbach, Germany

Becoming an Authorized Test Lab

Companies that operate one or more test labs can become an Authorized Testing Center, provided that (a) they are a member of Zhaga, and (b) they own and/or control one or more testing facilities that are accredited by an accreditor that is a full member of ILAC MRA.

Subsequently, individual test labs owned by an Authorized Testing Center must receive separate authorization. 

Further details can be found on the Zhaga member website:

Authorized Testing Centers and Test Labs (members only)