MET (MET Laboratories, Inc) is the abbreviation of Maryland Electrical Testing. It was established in 1959 in Maryland, USA (US headquarters), the first National Recognition Laboratory (NRTL). It is engaged in the development of product testing technology and certification. The US laboratories are located in Baltimore (Maryland), Santa Clara (California, Silicon Valley), Union City (California, Silicon Valley), Austin (Texas, Texas), and the US branches are located in North Carolina, Chicago, and Detroit.