Comment by Workaccount2

Having done UL certification before, this is exactly how it is.

During the process we forgot/missed that the product serial needed a single letter appended to the end to denote that it was the UL compliant version. We caught this after paying $15k for just recertification with new parts, no testing, only paperwork.

We went back to UL and told them about the mistake. They charged us $5k to open a new case just to append a "-5" to the name of the product on a handful of documents.

It's a total fucking racket.