"Charter of Corporate Behavior" of the Nippon Keidanren (The Japan Business Federation) was established in 1991 for the purpose of building an economy and society in which individuals and corporations are free to demonstrate their creativity with high ethical standards. And in 1996, "Implementation Guidance for Charter of Corporate Behavior eline Fifth Edition" was established according to the revision of the Charter.
Sony also participated in the formulation of and observes the standard outlined in "Charter of Corporate Behavior" and "Implementation Guidance for Charter of Corporate Behavior" of the Nippon Keidanren.