The UL File Number is an alphanumeric designation assigned to a company upon successful completion of a product evaluation or company certification.
The UL File Number field is also used to search for:
- Design Number
- System Number
- Construction Number
- Assembly Number
With the introduction of the
Enhanced UL Certification Mark in May 2013, the UL File Number is often being used as the unique identifier for Certified products and can be entered in the File Number search field to obtain additional certification information.
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