The best way to ensure all enterprise employees understand the corporate code of business conduct is to mandate annual ethics training that includes an exam. This will help employees to learn the content and principles of the code, as well as test their knowledge and comprehension. Ethics training can also reinforce the importance of ethical behavior and the consequences of violating the code. According to a Harvard Business Review article1, ethics training can help employees to develop ethical skills, such as moral awareness, moral reasoning, moral courage, and moral leadership1. A code of conduct is not effective if employees do not know or understand it, or if they do not apply it in their daily work. Therefore, ethics training is essential to ensure employees are aware of and adhere to the corporate code of business conduct. References: CGEIT Review Manual (Digital Version) or CGEIT Review Manual (Print Version), Chapter 1: Governance of Enterprise IT, Section 1.1: IT Governance Frameworks andPrinciples, Subsection 1.1.2: IT Governance Principles, Page 14-15. Building an Ethical Company.