The best example of a law which governs the behaviour of top executives is the Sarbanes-Oxley Act.

The Sarbanes-Oxley Act was passed in response to accounting scandals, such as the Enron scandal, and aims to protect investors by ensuring accurate financial reporting and disclosure by public companies. It includes provisions for top executives, such as requiring CEOs and CFOs to certify the accuracy of financial statements and imposing penalties for fraudulent activity.