The best practice to mitigate risk related to enterprise-wide ethical decision making in a multi-national organization is to provide ongoing awareness training to support a common risk culture. A common risk culture is a set of shared values, beliefs, and behaviors that influence how the organization identifies, analyzes, responds to, and monitors risks. Ongoing awareness training can help to promote a common risk culture by educating the employees about the enterprise's risk management objectives, policies, procedures, roles, and responsibilities, as well as the ethical standards and expectations that apply to their work. Ongoing awareness training can also help to reinforce the benefits of ethical decision making and the consequences of unethical behavior. Customized regional training on local laws and regulations, policies requiring central reporting of potential procedure exceptions, and zero-tolerance policies for risk taking by middle-level managers are also useful practices, but they are not as effective as ongoing awareness training to support a common risk culture. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 37.