Any person may lodge a complaint regarding a UL Certification, a UL service or a UL Standard.

Please follow the links below to file a complaint:

All customer complaints are generally acknowledged within 48 hours.

The result of any investigation and issue resolution is communicated via telephone or e-mail.

If it is determined through information provided by UL’s client, the complainant and our investigation that a communication should be made to the public, UL will issue a Public Notice.