Underwriters Laboratories (UL) is a private company that is
nationally recognized as an independent testing laboratory. UL
tests products for safety and products that pass UL tests can
carry a UL mark.
NEMA The National Electrical Manufacturers Association (NEMA) is an
organization that, among other things, develops standards for
electrical equipment.
NEC The National Fire Protection Association (NFPA) is a nonprofit
organization which publishes the National Electrical Code®
(NEC®). The intent of the NEC® is to describe safe electrical
practices.
ANSI The American National Standards Institute (ANSI) is a
nongovernmental organization that facilitates the development
of standards by establishing a consensus among qualified
groups.
IEEE The Institute of Electrical and Electronic Engineers (IEEE) is
an organization open to individual membership and provides a
variety of services for its members. It also develops numerous
standards for electrical and electronic equipment and practices.
IEC The International Electrotechnical Commission (IEC) is an
organization based in Geneva, Switzerland, with over 50
member nations. IEC writes standards for electrical and
electronic equipment practices.
NEC® and National Electrical Code® are registered trademarks of the
National Fire Protection Association.
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