What does UL stand for?

What does UL mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: UL.

We've found a total of 54 definitions for UL:

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Underwriter Laboratory, a U.S. government agency that controls and monitors lighting rules and safety

Governmental » US Government


Upper Limit

Governmental » NASA



Miscellaneous » Aircraft & Aviation


Underwriters Laboratories

Governmental » Environmental


What does UL mean?

Underwriters' Laboratories (used esp. on labels for electrical appliances approved by this nonprofit safety-testing organization).

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