On Mon, 29 Aug 2011 13:48:51 -0700, Paul Drahn
wrote:

Yes, a private company, but the insurance industry relies on their
label, and in Oregon, if not some other states, an item that plugs into
commercial AC power must have the UL label before it can be sold here.

Paul

CSA and ETL (and others) also have NRTL (Nationally Recognized Testing
Laboratory) status, so their marks should be equivalent. All will test
to the same safety standards.

http://www.osha.gov/dts/otpca/nrtl/