BSMI is the abbreviation of "bureau of standards, metrology and inspection" of the standards and Inspection Bureau of the Ministry of economy of Taiwan. According to the announcement of the Ministry of economy of Taiwan, China, from July 1st, 2005, products entering Taiwan, China shall be subject to electromagnetic compatibility and safety regulations. Under the leadership of the Economic Department of the government, the Taiwan Bureau of standards and inspection (BSMI) has formulated product inspection specifications for electronic and electrical products entering the Taiwan, China market. Products must comply with safety, EMC test and relevant tests before they can be authorized to use BSMI mark. BSMI certification is mandatory and requires both EMC and safety.