UL has nearly 400 UL STPs. The PDF file contains the STP number and title, standards covered by the STP, and UL staff contacts are identified for each STP.

To apply for membership on a Standards Technical Panel (STP), submit an STP Application for the STP(s) of interest. Please note: our Application process has been enhanced! This is now available through our new Standards member portal, MyInfo

STP Chart


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