دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (MSHA) a US government agency that evaluates research in the causes of occupational diseases and accidents. It is responsible for administration of the certification of respiratory safety equipment. Address: 4015 Wilson Blvd.;Arlington, VA 22203;(703) 235-1385.

abbr: Mine Safety and Health Administration.