NR received the ISO-9001:1994 certificate for the product development, manufacturing and service management of its protection and control devices and solutions in 1997. In 2004, NR was awarded ISO-9001:2000 Quality Management System Certificate issued by BSI for its efforts to ensure high quality products and services.

ISO-9001:1994 international Quality Control System in 1997.

ISO-9001:2000 Quality Management System issued by BSI in 2003.

ISO-14001:2004 Environment Management System issued by BSI in 2006

OHS-18001:1999 Occupational Health and Safety Management issued by BSI in 2006